Academic literature on the topic 'Casey Inlier'
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Journal articles on the topic "Casey Inlier"
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Carr, Lidena, Russell Korsch, Wolfgang Preiss, Sandra Menpes, Josef Holzschuh, and Ross Costelloe. "Structural and stratigraphic architecture of Australia's frontier onshore sedimentary basins: the Arckaringa, Officer, Amadeus, and Georgina basins." APPEA Journal 51, no. 2 (2011): 703. http://dx.doi.org/10.1071/aj10083.
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The Onshore Energy Security Program—funded by the Australian Government and conducted by Geoscience Australia—has acquired deep seismic reflection data in conjunction with state and territory geological surveys, across several frontier sedimentary basins to stimulate petroleum exploration in onshore Australia. Here, we present data from two seismic lines collected in SA and NT. Seismic line 08GA-OM1 crossed the Arckaringa and Officer basins in SA and the southern-most Amadeus Basin in NT. Seismic line 09GA-GA1 crossed the northeastern part of the Amadeus Basin and the complete width of the southern Georgina Basin in NT. Structural and sequence stratigraphic interpretations of the seismic lines will be presented here, followed by an assessment of the petroleum potential of the basins. Seismic line 08GA-OM1 also crosses the Neoproterozoic to Devonian eastern Officer Basin. The basin is structurally complex in this area, being dominated by south-directed thrust faults and fault-related folds—providing potential for underthrust petroleum plays. The northern margin of the basin is overthrust to the south by the Mesoproterozoic Musgrave Province. To the north, the Moorilyanna Trough of the Officer Basin is a major depocentre of up to 7,000 m deep. Both seismic lines cross parts of the eastern Amadeus Basin. Seismic line 08GA-OM1 shows that the southern margin of the basin is overthrust to the north by the Musgrave Province with the main movement during the Petermann Orogeny. In the northeast, seismic line 09GA-GA1 crosses two parts of the basin separated by the Paleoproteroozic to Mesoproterozoic Casey Inlier (part of the Arunta Region). The northern margin of the basin is imaged seismically as a southward-verging, thinned-skinned thrust belt, showing considerable structural thickening of the stratigraphic succession. Seismic line 09GA-GA1 was positioned to cross that part of the southern Georgina Basin that was considered previously to be in the oil window. Here, the basin has a complex southern margin, with Neoproterozoic stratigraphy being thrust interleaved with basement rocks of the Arunta Region. The main part of the basin, containing a Neoproterozoic to Devonian succession, is asymmetric, thinning to the north where it overlies the Paleoproterozoic Davenport Province. The well, Phillip–2, drilled adjacent to the seismic line, intersected basement at a depth of 1,489 m, and has been used to map the stratigraphic sequences across the basin.
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Heinz, Jürgen, Wolfgang Fiori, Peter Heusser, and Thomas Ostermann. "Cost Analysis of Integrative Inpatient Treatment Based on DRG Data: The Example of Anthroposophic Medicine." Evidence-Based Complementary and Alternative Medicine 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/748932.
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Background.Much work has been done to evaluate the outcome of integrative inpatient treatment but scarcely the costs. This paper evaluates the costs for inpatient treatment in three anthroposophic hospitals (AHs).Material and Methods.Cost and performance data from a total of 23,180 cases were analyzed and compared to national reference data. Subgroup analysis was performed between the cases with and without anthroposophic medical complex (AMC) treatment.Results.Costs and length of stay in the cases without AMC displayed no relevant differences compared to the national reference data. In contrast the inlier cases with AMC caused an average of € 1,394 more costs. However costs per diem were not higher than those in the national reference data. Hence, the delivery of AMC was associated with a prolonged length of stay. 46.6% of the cases with AMC were high outliers. Only 10.6% of the inlier cases with AMC were discharged before reaching the mean length of stay of each DRG.Discussion.Treatment in an AH is not generally associated with an increased use of resources. However, the provision of AMC leads to a prolonged length of stay and cannot be adequately reimbursed by the current G-DRG system. Due to the heterogeneity of the patient population, an additional payment should be negotiated individually.
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Erguvan, Mustafa, and David MacPhee. "Energy and Exergy Analyses of Tube Banks in Waste Heat Recovery Applications." Energies 11, no. 8 (August 12, 2018): 2094. http://dx.doi.org/10.3390/en11082094.
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In this study, energy and exergy analyses have been investigated numerically for unsteady cross-flow over heated circular cylinders. Numerous simulations were conducted varying the number of inline tubes, inlet velocity, dimensionless pitch ratios and Reynolds number. Heat leakage into the domain is modeled as a source term. Numerical results compare favorably to published data in terms of Nusselt number and pressure drop. It was found that the energy efficiency varies between 72% and 98% for all cases, and viscous dissipation has a very low effect on the energy efficiency for low Reynolds number cases. The exergy efficiency ranges from 40–64%, and the entropy generation due to heat transfer was found to have a significant effect on exergy efficiency. The results suggest that exergy efficiency can be maximized by choosing specific pitch ratios for various Reynolds numbers. The results could be useful in designing more efficient heat recovery systems, especially for low temperature applications.
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Wilson, Reginald A. "Geochemistry and petrogenesis of Ordovician arc-related mafic volcanic rocks in the Popelogan Inlier, northern New Brunswick." Canadian Journal of Earth Sciences 40, no. 9 (September 1, 2003): 1171–89. http://dx.doi.org/10.1139/e03-034.
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The Popelogan Inlier consists mainly of mafic volcanic rocks (lapilli tuffs and massive to amygdaloidal, plagioclase-phyric flows) of the Middle Ordovician Goulette Brook Formation. Pyroclastic rocks include high-MgOCrNi picritic tuffs (type I) containing, in some cases, >20% MgO, and related high-MgO andesitic tuff (type II). High-MgO rocks were generated by 3040% partial melting of an enriched mantle source; type II is descended from type I mainly by fractionation of olivine. Mafic flows comprise basaltic andesites (type III) with low trace-element abundances and strongly fractionated, trace-element-enriched andesites (type IV). Types III and IV represent ~20 and ~10% partial melts, respectively, of a mantle source similar to that of the pyroclastic rocks, based on similar ratios of high field strength elements (HFSE). Unlike types I and II, petrogenesis of mafic flows involved fractionation of plagioclase and possibly amphibole. Volcanic arc signatures include negative Nb and Ti anomalies in all basalt types, along with low abundances of HFSE. Trace-element abundances are inconsistent with prior depletion in the back arc and require involvement of a mantle plume or subcontinental lithosphere. The highly magnesian composition of the picrites demands high melting temperatures and rapid transit through the crust, both of which suggest extension of the arc-bearing plate. Compositionally similar rocks in the South Pacific are associated with unusual tectono-magmatic settings involving ridge subduction, which may have established the necessary extensional environment. It is proposed that subduction of a plume-influenced ridge segment could explain the chemistry of the Goulette Brook volcanic rocks.
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Katina, Stanislav. "Detection of non-affine shape outliers for matched-pair shape data." Tatra Mountains Mathematical Publications 51, no. 1 (November 1, 2012): 83–90. http://dx.doi.org/10.2478/v10127-012-0009-9.
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ABSTRACT Cleft lip/palate (CLP) is a relatively common birth defect so dis- figuring that nowadays it is almost always corrected surgically as early as possible. The postnatal surgical correction does not, however, result in a normally growing upper jaw, but instead, owing to scar tissue, one that grows abnormally. It is important to decide if a clinical treatment group is homogeneous. The example involves data from digitally processed lateral X-ray films of 48 boys who have complete unilateral CLP but no other malformation. 22 landmarks were represented by their Procrustes shape coordinates, principal components of matched- pair differences were examined, and the distribution of the 48 shape changes was studied for outliers in the affine and non-affine subspaces of the full Procrustes shape and form space. To separate outliers from inliers we use bagplots. There are no outliers apparent in the affine subspace. In the non-affine subspaces, we found no outliers in the subspace of bending patterns at large scale but four out- liers in the subspace of local changes at small scale. Almost the same outliers were found by form-space PCA. These latter are associated with possible creases of the corresponding thin-plate splines. In those cases we can use the same spline formalism to relax the outlying form to an inlier by optimal relaxation along the curve d´ecolletage that weighs bending energy against Procrustes distance and stop relaxation on the fence. These maneuvers suggest a possibly novel and interesting fusion of the Procrustes-spline toolkit with outlier detection. They also have practical implications for craniofacial management of CLP follow-up as well as suggestive implications for outlier detection in applied craniometrics and anthropometrics more generally.
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Grossi, Massimo. "On the number of critical points of solutions of semilinear elliptic equations." Electronic Research Archive 29, no. 6 (2021): 4215. http://dx.doi.org/10.3934/era.2021080.
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<p style='text-indent:20px;'>In this survey we discuss old and new results on the number of critical points of solutions of the problem</p><p style='text-indent:20px;'><disp-formula> <label/> <tex-math id="FE0.1"> \begin{document}$ \begin{equation} \begin{cases} -\Delta u = f(u)&in\ \Omega\\ u = 0&on\ \partial \Omega \end{cases} \;\;\;\;\;\;\;\;(0.1)\end{equation} $\end{document} </tex-math></disp-formula></p><p style='text-indent:20px;'>where <inline-formula><tex-math id="M1">\begin{document}$ \Omega\subset \mathbb{R}^N $\end{document}</tex-math></inline-formula> with <inline-formula><tex-math id="M2">\begin{document}$ N\ge2 $\end{document}</tex-math></inline-formula> is a smooth bounded domain. Both cases where <inline-formula><tex-math id="M3">\begin{document}$ u $\end{document}</tex-math></inline-formula> is a positive or nodal solution will be considered.</p>
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Li, Xiaoning, Chuanhai Wang, Gang Chen, Qiang Wang, Zunle Hu, Jinning Wu, Shan Wang, and Xing Fang. "Evaluating Efficiency Improvement of Deep-Cut Curb Inlets for Road-Bioretention Stripes." Water 12, no. 12 (November 30, 2020): 3368. http://dx.doi.org/10.3390/w12123368.
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Making a deep cut on the curb inlet has been used in some sponge-city (SPC) projects for road-bioretention stripes to manage stormwater runoff since they were easily implemented in the field. The efficiencies of the deep-cut curb inlets in those projects were unknown for lacking equation to evaluate their efficiencies. Two kinds of retrofit scenarios are commonly used: (1) The curb-cut cases when the deep cut is made only over the width of the curb inlet; (2) the road-curb cut cases when both the curb inlet and a small part of the road surface have a deep cut. An updated two-dimensional flow simulation program, FullSWOF-ZG, was used to determine two important parameters in road curb inlet design: The 100% interception curb inlet lengths (LT) and the curb inlet efficiencies (Eci). Eight-hundred retrofit modeling cases were compared with the no-cut cases to quantify the efficiency improvement of the deep-cut curb inlets. The simulation results show both LT and Eci of the curb-cut cases do not improve much. This case study with limited combinations of longitudinal and cross slopes and inlet lengths demonstrated that Eci of the road-curb cut cases improves to a large extent so that they can be used in the SPC projects and other urban drainage projects to reduce the flooding potentials. A general equation used to design and evaluate the road-curb cut inlets can be developed based on more simulation cases with a wide range of input parameters in a future study.
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Paredes, Jorge Morales, and Félix Humberto Soriano Méndez. "On the Cauchy problems associated to a ZK-KP-type family equations with a transversal fractional dispersion." Discrete & Continuous Dynamical Systems 42, no. 5 (2022): 2257. http://dx.doi.org/10.3934/dcds.2021190.
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<p style='text-indent:20px;'>In this paper we examine the well-posedness and ill-posedeness of the Cauchy problems associated with a family of equations of ZK-KP-type</p><p style='text-indent:20px;'><disp-formula> <label/> <tex-math id="FE1"> \begin{document}$ \begin{cases} u_{t} = u_{xxx}-\mathscr{H}D_{x}^{\alpha}u_{yy}+uu_{x}, \cr u(0) = \psi \in Z \end{cases} $\end{document} </tex-math> </disp-formula></p><p style='text-indent:20px;'>in anisotropic Sobolev spaces, where <inline-formula><tex-math id="M1">\begin{document}$ 1\le \alpha \le 1 $\end{document}</tex-math></inline-formula>, <inline-formula><tex-math id="M2">\begin{document}$ \mathscr{H} $\end{document}</tex-math></inline-formula> is the Hilbert transform and <inline-formula><tex-math id="M3">\begin{document}$ D_{x}^{\alpha} $\end{document}</tex-math></inline-formula> is the fractional derivative, both with respect to <inline-formula><tex-math id="M4">\begin{document}$ x $\end{document}</tex-math></inline-formula>.</p>
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Lampunio, Lisa, Yu Duan, Matthew D. Eaton, and Michael J. Bluck. "Mean Flow, Turbulent Structures, and SPOD Analysis of Thermal Mixing in a T-Junction with Variation of the Inlet Flow Profile." Energies 15, no. 22 (November 10, 2022): 8415. http://dx.doi.org/10.3390/en15228415.
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This paper investigates the effects of different inlet flow profiles on thermal mixing within a T-junction using CFD simulations with the IDDES-SST turbulence model. The different combinations of inlet flow profiles are related to different stage in the flow entry region. The effects of the inlet flow profile on the mean and transient flow behaviour are assessed, while a spectral proper orthogonal decomposition and power spectral density analysis are performed to assess the underlying flow structures and the predominant frequency modes. It is found that the vortical structures associated with the horseshoe and hovering vortex systems consist of a single roll-up vortex for cases with uniformly distributed boundary conditions (BCs) at the branch inlet whereas a double roll-up vortex is observed for the other cases. The double roll-up vortex enhances the mixing locally due to the entrainment of fluid from the branch pipe in these vortical structures, which then results in a lower mean temperature distribution. The appearance of the secondary vortex pair and the nested vortices is delayed for cases with uniformly distributed BCs at the branch inlet, which again results in lower thermal mixing and consequently higher values of mean temperature when compared with the other cases. It is also found that the vorticity related to the counter-rotating vortex pair as well as to the second pair of vortices rotating in the opposite direction is higher for cases with uniformly distributed BCs at the branch inlet. Lastly, the combinations of inlet flow profiles lead to different coherent structures, and the dominant frequencies are of a Strouhal number of around 0.7 for uniformly distributed profiles at the branch inlet and in the range 0.4–0.5 for the other cases.
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Li, Xiaoning, Xing Fang, Chuanhai Wang, Gang Chen, Shiwei Zheng, and Yue Yu. "Performance Analysis for Road-Bioretention with Three Types of Curb Inlet Using Numerical Model." Water 13, no. 12 (June 11, 2021): 1643. http://dx.doi.org/10.3390/w13121643.
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The FullSWOF-ZG (Full Shallow Water Overland Flow with infiltration determined by Zones and Grate-inlet submodules) program was used to simulate the road-bioretention (RB) stripe and evaluate the performance of the RB stripe with three types of curb inlet. The program was revised from the open-source FullSWOF-2D program and the validation results indicated FullSWOF-ZG predicts the RB stripe performance accurately. The model cases of 27 RB with different longitude slopes (S0), cross slopes (Sx), and curb inlet lengths (Lci) for the undepressed, composite depressed, and local depressed curb inlets were established in this study. Therefore, 81 cases in total were simulated to explore the curb inlet type and design parameter’s influence on the RB stripe performance. Overall, it was found that the bioretention control efficiency will increase with the S0 decrease, Sx increase, and Lci increase. The composite depressed curb inlet was the most efficient to intercept the road runoff into the bioretention strip, the next best is the local depressed curb inlet, and the undepressed curb inlet was the least efficient. The curb inlet and grate inlet combination in composite depressed curb inlet cases were able to deal with all the road surface runoff for the small longitudinal slope (S0 = 0.1% and 0.3%) to relieve the road local flood inundation.
Dissertations / Theses on the topic "Casey Inlier"
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Grekin, Jacqueline. "Understanding the community-level impacts of tourism development : the case of Pond Inlet, NWT." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68096.
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This thesis aims to provide a better understanding of the economic and socio-cultural impacts associated with small scale tourism development in the Inuit community of Pond Inlet, Baffin Island. A brief history and economic profile of the community illuminate the reasons underlying its adoption of tourism as a source of income and employment. I then proceed to review past attempts to understand the relationship between tourism and community development. Despite the merits of these studies, they are shown to have largely failed to supply a theoretical framework capable of explaining the underlying factors that influence the scale and nature of the resulting impacts. I then propose that recent theoretical developments, based on the 'flexible specialization' approach, may better assist our attempts to understand the dynamic relationship between tourism and the communities that host it.The empirical section of the thesis is based on surveys of several key actors: residents, tourists, and the tourist industry. When combined with a simplified multiplier analysis, the findings indicate that the community's current tourism strategy is largely consistent with local economic objectives and that as a result residents support tourism development. Nevertheless, the results suggest certain weaknesses in the current approach to tourism development. They include: the potential for conflicts to develop between local hunters and wildlife watchers; a failure to link tourism to other sectors of the local economy; and difficulties reaching consumers in the context of a restructured travel industry increasingly dominated by computer technology. I then proceed to provide some policy and planning recommendations. This is followed by a brief evaluation of the theoretical approach adopted. I conclude by outlining some areas for future research.
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Condon, Elizabeth Darrow. "Physiological Ecology of the Cultured Hard Clam, Mercenaria mercenaria: A Case Study in Cherrystone Inlet, Virginia." W&M ScholarWorks, 2005. https://scholarworks.wm.edu/etd/1539617838.
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Карапузова, Марина Володимирівна, Марина Владимировна Карапузова, and Maryna Volodymyrivna Karapuzova. "Гидродинамические особенности конструирования комбинированного подвода центробежного насоса." Thesis, Изд-во СумГУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/29796.
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У дисертаційній роботі представлені результати дослідження робочого процесу в підвідному пристрої відцентрового насоса. З урахуванням гідродинамічних особливостей робочого процесу систематизовано підхід до проектування підвідного пристрою відцентрового насоса. Запропоновано математичну модель розрахунку підвідного пристрою, обґрунтовано виділення підводу в окремий модуль при блочно-модульному проектуванні. Основним змістом роботи є аналіз структури течії на ділянці «вихід з підводу - вхід в робоче колесо», вивчення впливу моменту швидкості потоку на вході в робоче колесо на характеристики насоса в цілому. Розроблено новий тип підводу - комбінований підвід, який дозволяє створити наперед задану структуру потоку на вході в робоче колесо. На розроблену конструкцію комбінованого підводу отримано декларативний патент України на корисну модель. Розроблено методику проектування комбінованого підводу.
При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/handle/123456789/29796В диссертационной работе представлены результаты исследования рабочего процесса в подводящем устройстве центробежного насоса. С учетом гидродинамических особенностей рабочего процесса систематизирован подход к проектированию подводящего устройства центробежного насоса. Предложена математическая модель расчета подводящего устройства, обосновано выделение подвода в отдельный модуль при блочно-модульном проектировании. Основным содержанием работы является анализ структуры течения на участке «выход из подвода – вход в рабочее колесо», изучение влияния момента скорости потока на входе в рабочее колесо на характеристики насоса в целом. Для каждого соотношения геометрических параметров рабочего колеса существует свое значение момента скорости потока на входе в рабочее колесо, при котором создается наиболее равномерная структура потока на входе в рабочее колесо, в результате чего обеспечивается протекание рабочего процесса ЦН с оптимальным КПД. Создать требуемую структуру потока на входе в рабочее колесо предлагается путем применения подвода нового типа – комбинированного подвода. На разработанную конструкцию комбинированного подвода получен декларативный патент Украины на полезную модель. Комбинированный подвод состоит из кольцевой камеры и лопаточного направляющего аппарата. Такая конструкция подвода является технологичной и создает базу для унификации подводящих устройств центробежного насоса. Для обеспечения наиболее эффективного рабочего процесса центробежного насоса проектируется лопаточный направляющий аппарат, который и создает требуемый момент скорости потока на входе в данное рабочее колесо, оставляя при этом неизменной базовую корпусную деталь. Сегодня все чаще при эксплуатации мощных энергоемких насосов на режимах отличных от номинального применяют сменные ротора, которые обеспечивают оптимальную работу насоса на указанных режимах. При этом применяют комбинированные отводы, но не уделяется внимание вопросу создания определенных условий на входе в рабочее колесо. С помощью комбинированного подвода можно решить эту проблему, и с успехом использовать его при проектировании насосов со сменными роторами, что приведет к улучшению ряда эксплуатационных показателей. При выполнении работы применялись методы исследования: аналитический метод, численное исследование течения в подводящем устройстве центробежного насоса и физический эксперимент. Численное моделирование проводилось с использованием программного продукта ANSYS CFX 11.0 с использованием стандартной k-ε модели турбулентности. Расчет течения проводился в стационарной постановке. Рабочая жидкость была принята несжимаемой, режим течения – турбулентный. В качестве граничных условий заданы: на входе – массовый расход, на выходе – статическое давление, на всех твердых поверхностях – условие равенства скорости нулю (условие прилипания). При цитировании документа, используйте ссылку http://essuir.sumdu.edu.ua/handle/123456789/29796
Candidate Paper performs research results of operating process at centrifugal pump suction chamber. Centrifugal pump suction chamber designing has been systematized due to the hydro-mechanical features of operating process. Mathematical (designing) model of suction chamber has been proposed, suction chamber separationas a separate module has been approved for bloke-module designing. The basic content of the Paper is flow structure analyze at the area “outlet of the suction chamber–impeller inlet” and studying influence of the flow velocity moment at impeller inlet on the pump characteristics. Suction chamber of a new type has been developed – combined suction chamber, which allows creating predictable flow structure at impeller inlet. Developed design of the combined suction chamber is protected and confirmed with Declarative Patent of Ukraine for the “Useful Model”. To ensure the most effective impeller operating process we should design vane diffuser, which would create required flow velocity torque at impeller inlets. Designing procedure for suction case of combined type has been developed. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/29796
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Thomas, C. M. "Zircon Lu-Hf constraints on recently proposed models for the tectonic assembly of Proterozoic central Australia." Thesis, 2012. http://hdl.handle.net/2440/95490.
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This item is only available electronically.The Arunta region, central Australia, is interpreted to record evidence for the complex evolution and growth of the Australian continent during the Paleoproterozoic and Mesoproterozoic. The Warumpi Province, in the southern Arunta region, has been proposed to be an exotic terrain that has accreted to the more northerly Aileron Province in the North Australian Craton during the ca1640 Ma Liebig Orogeny. The Casey Inlier has been identified to contain the boundary between the Aileron and Warumpi Provinces. U-Pb dating indicates ages of ca1652-1670 Ma granites to be the Warumpi Province and the ca1756-1774 Ma granites to be the Aileron Province. New Lu-Hf zircon analysis undertaken in this study revealed that the source regions of both provinces are isotopically indistinguishable. U-Pb and Lu-Hf analysis of detrital zircon in a quartzite cover sequence provides a maximum depositional age of ca1311 Ma and an isotopic signature that is characteristic of the Musgrave Province. This suggests that the Arunta region was proximal at this time. Field observations indicate a pervasive NNW-SSE strike fabric with east side up shear dated at ca 1730 Ma age, with a later west side up shear fabric attributed to be ca 1140 Ma shear fabric. The data obtained in this study combined within previous evidence for shared histories indicate the Warumpi Province was not exotic to the Aileron Province and it is most unlikely that a suturing event occurred at ca 1640 Ma.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Earth and Environmental Sciences, 2012
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Concejo, Ana Vila. "Sediment dynamics and tidal inlet relocation in mixed-energy settings: the case of Ancão inlet (Algarve - Portugal)." Doctoral thesis, 2003. http://hdl.handle.net/10400.1/1931.
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Tese de dout., Ciências do Mar, Faculdade de Ciências do Mar e do Ambiente, Univ. do Algarve, 2003The main aim of this thesis is to study the sedimentary dynamics of mixed energy tidal inlets on different time scales (from hours to decades) as well as to analyse inlet relocation as a coastal management tool. The field studies were carried out in the Ria Formosa, a multi-inlet barrier island system located in southern Portugal. Long Term Studies: The four natural inlets of the Ria Formosa were studied for the period between the 1940’s and 1996. Inlet width and position of the inlet channel were determined using a series of vertical aerial photos and charts. The objective was to determine the association between inlet migration patterns and different hydrodynamic conditions, major storms and engineering interventions. Results indicate that natural inlet opening and evolution were mainly affected by three factors: (a) the existence of sub-embayments (western and eastern) inside the system, (b) exposure to wave energy, and (c) inlet efficiency. Two distinctive eastward migration patterns were found by analysing the correlation coefficient (r) between inlet width evolution and inlet migration and by the comparison of the shape of the curves fitted to the inlet migration behaviour. Typical migration of the high-energy flank is characterised by an initial stage of readjustment, with low migration rates, followed by a stage of high eastward migration rates, up to a limiting position. Inlet width remains reasonably constant during the entire migration cycle, thus the correlation between inlet width and position is very low. Typical inlets on the low-energy flank are formed by barrier breaching during major storms and produce, initially, very wide inlets. Eastward inlet migration on the low-energy flank follows a natural logarithmic curve where channel migration is accompanied by strong constructional processes on the updrift barrier. Due to subsequent inlet width reductions, the correlation between inlet width and position is significant. Medium Term Studies: A monitoring program, including the acquisition of a series of topo-bathymetric surveys and oblique aerial photos, has been carried out at Anc˜ao Inlet since its artificial opening in June 1997. The results (morphologic and volumetric) were analysed with relation to the prevailing oceanographic conditions. This allowed the development of a conceptual evolutionary model for the natural evolution of artificially opened inlets with 4 stages: Stage 1 is the artificially opened inlet; Stage 2 represents the inlet after reaching dynamic equilibrium for the channel and while it is developing the deltas; Stage 3 is the mature migrating inlet; and Stage PS (Post-Storm) is the inlet situation after high-energy conditions. Transition between stages 1 to 3 is a continuous process with intermediate sub-stages. Transition to Stage PS is a discrete phenomenon, caused by high-energy events, after which the inlet continuously changes back to the previous stage. Short Term Studies: Three sediment transport studies using tracers were performed at Anc˜ao Inlet. The objectives of the experiments were to determine and understand the sediment transport pathways and magnitudes on the updrift margin of an inlet. In order to apply the traditionally used Space Integration Methodology to the tracer experiments, some adaptations had to be made. The division of the study area into morphologically defined sectors was found to be a key factor for the applicability of tracers in such a complex area. Therefore, 4 sectors were defined: Sector A representing the straight part of the updrift beach; Sector B being the upper area of the swash platform; Sector C being the lower area of the swash platform; and Sector D representing the inner parts of the inlet margin. The integrated study of all data (wind, waves, currents, tracer distribution and topographic evolution) led to the determination of the sediment pathways. Three tidal stages (TS), associated with distinctive sediment transport patterns, were found to occur at the inlet margin during each tidal cycle: TS1 implies flooding currents, and thus, transport towards the inside of the inlet area, both on the swash platform and the inner parts of the inlet area; during TS2 flooding currents transporting sediments towards the inlet occur on the swash platform whilst the interaction of the flooding currents with the flood delta produces the development of an anticlockwise internal gyre (IG) that results in ebbing currents occurring in the inner inlet margin; TS3 implies ebbing transport both in the inner margin and the swash platform. Evidence of the existence of a clockwise external gyre (EG) on the swash platform was found. A semi-quantitative conceptual model was developed in order to explain the sediment transport pathways and magnitudes that a known mass of sediment would follow after arriving at the swash platform. It was found that the areas with the largest sediment accumulation were Sector B and C, whilst almost no sediment was retained in Sector D which underwent strong erosive processes. According to the model only 48% of the initial mass of sediments are still in the system after two tidal cycles. It is hypothesised that sediment losses are due to sediment transport towards the ebb delta and to sediment by-passing occurring from the ebb delta to the downdrift beach through swash bar processes. The herein defined conceptual model represents a useful tool that could be applied to other tidal inlets under similar conditions, facilitating sediment budget studies around tidal inlets. Inlet Relocation Assessment: Two inlets were relocated in the Ria Formosa and were the subject of a monitoring program that included the acquisition of quantitative (topo-bathymetric surveys) data. The data obtained from the monitoring program were analysed together with the wave climate and then compared with historical information on the natural inlets, in order to assess the degree of success of the relocation actions. One of the relocations studied, Anc˜ao Inlet, was considered to be successful even though an initial unexpected behaviour produced some material damage to property. On the contrary, the relocation of Fuzeta Inlet, did not have the expected results and the new inlet was effected by the same problems as the old one. It was found that the most important factor for a relocation action to succeed is the correct choice of the location of the opening. A theoretical procedure to enhance the possibilities of relocation success is suggested: (1) Hydrodynamic studies are needed in order to determine if the present conditions are similar to the historical ones. (2) The position for the inlet opening is chosen according to the hydrodynamic conditions but there are other factors to be taken into account, i.e., the historical migration paths and typical inlet width of the natural inlet; the hydrodynamics of the backbarrier; the morphology of the backbarrier and, for multi-inlet barrier island systems, the proximity to adjacent inlets. (3) Once the position is chosen, environmental impact studies should be made in order to assess the risk of the relocation for the ecosystems of the area. Only if the environmental impact studies are favourable, should a relocation action be performed.
European Marine Sicience and Technology Program
Fundação para a Ciência e Tecnologia
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Song, Gang, and 宋崗. "DESIGN ANALYSIS OF AN IRR CASE WITH ELLIPTIC AIR-INLET PORTS." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/85637516178967393785.
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碩士淡江大學
機械工程研究所
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This paper is concerned with the stress concentration problem of the integral rocket ramjet (IRR) with four ellipticair-inlet ports. The problem can be simplified by the analysisof the stress distribution around the holes in a cylindricalpressure vessel with elliptic cutouts. In this paper, the problems are solved by the FiniteElement Method. First, we use the four nodes bilinear plane-stress ele- ment to solve the plane-stress problem considering a cylindrical vessel with infinite radius. Next, we use fournodes bilinear shell element to analyze the stress condition of the cylindrical vessel with one elliptic cutout, and compare the solution with Sanders solutions based on the perturbation method. Finally, we analyze the stress condition around the holes of an IRR case with four elliptic cutouts. In this study, the results of stress analysis can be pro- vided an useful guide to design the IRR case with reinforcement and sealing protection near the inletports.
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Amado, Pedro Miguel de Sousa Vinagre. "Salt marsh response to changing hydrodynamics: the case of Ancão Inlet migration (Ria Formosa coastal lagoon)." Master's thesis, 2019. http://hdl.handle.net/10400.1/13895.
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Concerning the economic and ecological importance of salt marshes, it is of extreme importance to improve our knowledge on the physical processes involved with marsh evolution, as well as the limits and degree of interaction with the surrounding sedimentary sources. The studied salt marsh area is located fronting Ancão Inlet, in the western sector of the Ria Formosa barrier system. A 67-year time series of aerial photographs and ortho-photographs, between 1947 and 2014, was used to infer salt marsh sedimentary evolution (progression or recession) in relation to natural inlet migration and to its relocation in 1997. The following morphologies were mapped: salt marsh, tidal flat, sand banks, and inlet flood delta. The results focus on the analysis of horizontal displacement of these morphologies over time.
It was noted that in general, the Salt Marsh presents a growth of its area along time. The different stages of the Ancão inlet migration and the consequent distance to the inlet throat is a limiting factor for salt marsh growth. The sand banks and flood deltas are the main sediment feeders of the Tidal Flat growth. The contribution of the Ancão inlet to the Tidal Flat growth was more significant when the inlet starts reaching its closure phase. The growth of Tidal Flat is an opportunity for salt marsh developmentTendo em conta a economia e ecologia dos sapais de maré, é de extrema importância melhorar os conhecimentos sobre os processos físicos envolvidos na sua evolução, bem como o conhecimento acerca dos seus limites físicos e interações existentes com as fontes sedimentares presentes no sistema. A área de estudo deste trabalho localiza se em frente a uma barra de maré, Barra do Ancão, localizada no sector oeste do sistema de ilhas barreira Ria Formosa, Portugal. Foi utilizada uma serie temporal de 67 anos de fotografias aéreas e ortofotomapas, entre 1947 e 2014, para inferir a evolução sedimentar do sapal (progressão ou regressão) em relação à migração natural da barra do Ancão e à sua relocação em 1997. Os seguintes ambientes foram mapeados: sapal de maré, planície de maré, bancos arenosos nos canais e delta de enchente da barra. A análise de resultados incluiu a análise da variabilidade horizontal destes ambientes ao longo do tempo. No geral observou-se um crescimento na área do sapal ao longo do tempo, influenciado pela migração da barra. Os diferentes estágios de migração da barra, e consequente proximidade à barra, são fatores limitantes para o crescimento do sapal em estudo. Verificou se que os bancos arenosos no canal e o delta de enchente da barra são as principais sumidores sedimentares para o crescimento da planície de maré. A contribuição da barra para o crescimento da planície de maré é mais significativa quando a barra começa a aproximar-se da sua fase de encerramento. Este aumento na planície de mare, por sua vez, leva ao aumento da área de sapal.
Would also like to acknowledge the providing of the aerial photographs obtained from the framework of the EVREST project (PTDC/MAR-EST/1031/2014), funded by FCT (Fundação para a Ciência e a Tecnologia).
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Skala, Aurora Anne. "Heiltsuk and Wuikinuxv rock art: applying DStretch to reveal a layered landscape, a case study on the Central Coast, British Columbia, Canada." Thesis, 2015. http://hdl.handle.net/1828/6455.
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This archaeological community-engaged research focuses on locating, recording, photographing, and classifying, rock art (pictographs and petroglyphs) designs within Heiltsuk and Wuikinuxv Nations’ territories. The two areas are on the Central Coast of British Columbia, Canada: River’s Inlet/Owikeno Lake (Wuikinuxv Territory, near Oweekeno village), and Roscoe Inlet (Heiltsuk Territory, near Bella Bella). By listening to stories and visiting rock art locations its deep history and significance can begin to be comprehended. Throughout this research 58 rock art sites were visited and over 900 designs were categorized into nine types. Within this context I consider the feasibility and benefits of digital contrast adjustment of photographs using DStretch, a plugin created for ImageJ, that renders visible faint traces of pigment which can not be seen with the naked eye. Additionally, the potential of underwater archaeology (scuba diving) for the discovery and recording of rock art sites is explored.Graduate
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Books on the topic "Casey Inlier"
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Allen-Chabot, Amy M., Suzanne Curtis, and Alma Blake. Inlet Isles: A Hospital Foodservice Case Study. Prentice Hall, 2002.
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Inlet Isles: A Hospital Foodservice Case Study. Prentice Hall, 2002.
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W, Stewart Emil, Toney Michael L, Pacific Environmental Services, and United States. Environmental Protection Agency. Office of Air Quality Planning and Standards, eds. Manual and continuous emissions testing, kiln no. 1 scrubber inlet and stack, National Lime & Stone Company, Carey, Ohio. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, 2000.
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Manual and continuous emissions testing, kiln no. 1 scrubber inlet and stack, National Lime & Stone Company, Carey, Ohio: Final report. Research Triangle Park, NC: U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, 2000.
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Rez, Peter. Electrical Power Generation: Fossil Fuels. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198802297.003.0004.
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Nearly all electrical power is generated by rotating a coil in a magnetic field. In most cases, the coil is turned by a steam turbine operating according to the Rankine cycle. Water is boiled and heated to make high-pressure steam, which drives the turbine. The thermal efficiency is about 30–35%, and is limited by the highest steam temperature tolerated by the turbine blades. Alternatively, a gas turbine operating according to the Brayton cycle can be used. Much higher turbine inlet temperatures are possible, and the thermal efficiency is higher, typically 40%. Combined cycle generation, in which the hot exhaust from a gas turbine drives a Rankine cycle, can achieve thermal efficiencies of almost 60%. Substitution of coal-fired by combined cycle natural gas power plants can result in significant reductions in CO2 emissions.
Book chapters on the topic "Casey Inlier"
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Rohani, Atooshe. "Inlet Ventricular Septal Defect (VSD)." In Clinical Cases in Cardiology, 197–200. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16618-2_48.
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Thanh Tung, Tran, Nguyen Quang Chien, and Do Xuan Tinh. "Sand-Spit Evolution and Inlet Dynamics Derived from Satellite Images: A Case Study for Tien Chau Inlet, Vietnam." In Lecture Notes in Civil Engineering, 287–93. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0053-1_36.
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Ngouani, M. M. Siewe, Yong Kang Chen, R. Day, and O. David-West. "Low-Speed Aerodynamic Analysis Using Four Different Turbulent Models of Solver of a Wind Turbine Shroud." In Springer Proceedings in Energy, 149–54. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63916-7_19.
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AbstractThis study presents the effect of four different turbulent models of solver on the aerodynamic analysis of a shroud at wind speed below 6 m/s. The converting shroud uses a combination of a cylindrical case and an inverted circular wing base which captures the wind from a 360° direction. The CFD models used are: the SST (Menter) k-ω model, the Reynolds Stress Transport (RST) model, the Improved Delay Detached Eddies Simulation model (IDDES) SST k-ω model and the Large Eddies Simulation Wall Adaptive model. It was found that all models have predicted a convergent surface pressure. The RST, the IDDES and the WALE LES are the only models which have well described regions of pressure gradient. They have all predicted a pressure difference between the planes (1–5) which shows a movement of the air from the lower plane 1 (inlet) to the higher plane 5 (outlet). The RST and IDDES have predicted better vorticities on the plane 1 (inlet). It was also found that the model RST, IDDES, and WALE LES have captured properly the area of turbulences across the internal region of the case. All models have predicted the point of flow separation. They have also revealed that the IDDES and the WALE LES can capture and model the wake eddies at different planes. Thus, they are the most appropriate for such simulation although demanding in computational power. The movement of air predicted by almost all models could be used to drive a turbine.
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Do, Anh T. K., Vasiliki E. Kralli, Sierd De Vries, Viet T. Nguyen, and Marcel J. F. Stive. "Morphodynamics of a Seasonal Inlet: A Case Study Using Remote Sensing and Numerical Modelling for Cua Dai Inlet, Central Vietnam." In APAC 2019, 417–25. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0291-0_58.
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Leonhard, Martin. "Case Study Gallus Labelfire 340: Guiding Question to Choose a Hybrid Inline Label Converting System." In Handbook of Industrial Inkjet Printing, 731–36. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527687169.ch42.
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González-Gorbeña, Eduardo, André Pacheco, Theocharis A. Plomaritis, Óscar Ferreira, Cláudia Sequeira, and Theo Moura. "Surrogate-Based Optimization of Tidal Turbine Arrays: A Case Study for the Faro-Olhão Inlet." In Lecture Notes in Computer Science, 548–61. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22744-9_43.
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Lee, Christine U., and James F. Glockner. "Case 13.11." In Mayo Clinic Body MRI Case Review, edited by Christine U. Lee and James F. Glockner, 634–35. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199915705.003.0335.
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37-year-old woman with occasional stridor and abnormal findings on chest radiograph Axial fat-suppressed T2-weighted FSE images (Figure 13.11.1) reveal a thoracic inlet cystic lesion that deviates and compresses the trachea and contains several fluid-fluid levels. Axial postgadolinium 3D SPGR images (Figure ...
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Sonsuz, Abdullah, and Oguz Kagan Bakkaloglu. "Biomarkers in Liver Disease." In Biomarkers in Medicine, 490–521. BENTHAM SCIENCE PUBLISHERS, 2022. http://dx.doi.org/10.2174/9789815040463122010020.
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Symptoms and signs of liver diseases are highly variable depending on theetiology, disease stage, and type of liver involvement. There are different types of liverdiseases; causes of liver diseases may be viral, toxic, metabolic, or autoimmune.However, in some cases, liver disease can develop as a result of diseases of otherorgans or systems. It is almost impossible to differentiate all of these solely on the basisof clinical symptoms and findings. Furthermore, the early stages of liver disease maybe completely asymptomatic, or in some cases, the disease may progress with onlysubtle and non-specific symptoms. Therefore, biomarkers have a critical role inscreening, diagnosis, staging, and evaluation of therapeutic response to treatment inliver diseases.
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Massaro, Alessandro, Nicola Contuzzi, and Angelo Galiano. "Intelligent Processes in Automated Production Involving Industry 4.0 Technologies and Artificial Intelligence." In Research Anthology on Cross-Industry Challenges of Industry 4.0, 634–55. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-8548-1.ch033.
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The chapter presents different case studies involving technology upgrading involving Industry 4.0 technologies and artificial intelligence. The work analyzes four cases of study of industry projects related to manufacturing process of kitchen, tank production, pasta production, and electronic welding check. All the cases of study concern the analysis of engineered processes and the inline implementation of image vision techniques. The chapter discusses other topics involved in the production process such as augmented reality, quality prediction and predictive maintenance. The classic methodologies to map production processes are matched with innovative technologies of image segmentation and data mining predicting defects, machine failures, and product quality. The goal of the chapter is to prove how the combination of image processing techniques, data mining approaches, process simulation, chart process modeling, and process reengineering can constitute a scientific research project in industry research.
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Massaro, Alessandro, Nicola Contuzzi, and Angelo Galiano. "Intelligent Processes in Automated Production Involving Industry 4.0 Technologies and Artificial Intelligence." In Advanced Robotics and Intelligent Automation in Manufacturing, 97–122. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1382-8.ch004.
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The chapter presents different case studies involving technology upgrading involving Industry 4.0 technologies and artificial intelligence. The work analyzes four cases of study of industry projects related to manufacturing process of kitchen, tank production, pasta production, and electronic welding check. All the cases of study concern the analysis of engineered processes and the inline implementation of image vision techniques. The chapter discusses other topics involved in the production process such as augmented reality, quality prediction and predictive maintenance. The classic methodologies to map production processes are matched with innovative technologies of image segmentation and data mining predicting defects, machine failures, and product quality. The goal of the chapter is to prove how the combination of image processing techniques, data mining approaches, process simulation, chart process modeling, and process reengineering can constitute a scientific research project in industry research.
Conference papers on the topic "Casey Inlier"
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Ashouri, Amir H., Mostafa Elhoushi, Yuzhe Hua, Xiang Wang, Muhammad Asif Manzoor, Bryan Chan, and Yaoqing Gao. "Work-in-Progress: MLGOPerf: An ML Guided Inliner to Optimize Performance." In 2022 International Conference on Compilers, Architecture, and Synthesis for Embedded Systems (CASES). IEEE, 2022. http://dx.doi.org/10.1109/cases55004.2022.00008.
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Cox, Christopher, Chunlei Liang, and Michael Plesniak. "Spectral Difference Solution of Incompressible Flow Over an Inline Tube Bundle With Oscillating Cylinder." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78122.
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A high-order spectral difference (SD) method for solving the Navier-Stokes equations on moving, deformable unstructured grids has been developed [1]. In this paper, the SD method and the artificial compressibility method (ACM) are integrated with a dual time-stepping scheme to model unsteady incompressible viscous flow past an inline tube bundle of cylinders equally sized (diameter = d) and spaced (spacing = 2.1*d) over an unstructured grid. Flow simulation results are obtained using a fourth-order space accurate SD method. Two forced oscillation cases are considered; (1) 1st cylinder oscillation and (2) 2nd cylinder oscillation. The Reynolds number used for both cases is 100 and the flow is laminar. Forced oscillation is performed in the tranverse direction, and the subsequent altering of the flow physics of the system is studied. The frequency of vortex shedding behind each cylinder is the same. Root mean square results show that the lift coefficient is greatest for the 4th inline cylinder in both cases. Furthermore, a reduction in both lift and drag coefficients is seen from case (1) to case (2).
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Zhang, D. J., Q. W. Wang, M. Zeng, L. Q. Luo, F. Wu, and Z. P. Feng. "CFD Optimization of Gas Inlet Configuration for 100kW Microturbine Recuperator." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90256.
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Compact and efficient recuperator is an important component of a microturbine system. To ascertain the optimum gas cavity configuration of the recuperator in a 100kW-microturbine system, a numerical study of flow performance has been done. The main parameters to change in different cases are cone angle of the gas pipeline, α and depth of the pipeline in the gas cavity, L. By comparing the gas pressure drop, Δp and the gas outlets velocity nonuniformity, Su, we found that the case with α = 5° and L = 370mm is the best configuration. Comparing with the worst case, it may greatly decrease the velocity nonuniformity by 73.3% while the corresponding pressure drop increases only 8%.
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Kong, Yuting, and Dong Ni. "A practical yield prediction approach using inline defect metrology data for system-on-chip integrated circuits." In 2017 13th IEEE Conference on Automation Science and Engineering (CASE 2017). IEEE, 2017. http://dx.doi.org/10.1109/coase.2017.8256193.
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Ben-Asher, Yosi, Nidal Faour, and Ofer Shinaar. "Mutual Inlining: An Inlining Algorithm to Reduce the Executable Size." In 11th International Conference on Embedded Systems and Applications (EMSA 2022). Academy and Industry Research Collaboration Center (AIRCC), 2022. http://dx.doi.org/10.5121/csit.2022.120601.
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We consider the problem of selecting an optimized subset of inlinings (replacing a call to a function by its body) that minimize the resulting code size. Frequently, in embedded systems, the program’s executable file size must fit into a small size memory. In such cases, the compiler should generate as small as possible executables. In particular, we seek to improve the code size obtained by the LLVM inliner executed with the -Oz option. One important aspect is whether or not this problem requires a global solution that considers the full span of the call graph or a local solution (as is the case with the LLVM inliner) that decides whether to apply inlining to each call separately based on the expected code-size improvement. We have implemented a global type of inlining algorithm called Mutual Inlining that selects the next call-site (f()callsg() to be inline based on its global properties. The first property is the number of calls to g(). Next property is determining if inlining g() to f() may prevent inlining other more beneficial neighboring callsites. Finaly repeated inlining iterations over the call graph are performed until there are no more beneficial inlinings to perform. Hence, considering the effect of previously made inlinings on the next call-site to be inline. Our results show small but consistant improvement compare to LLVM’s Oz.
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Kiptoo, Dennis K., Nina Stark, Ali Albatal, and Cagdas Bilici. "Uppermost Subaqueous Soil Variability in Front of the Situk River Inlet, Alaska, from Portable Free Fall Penetrometer." In Eighth International Conference on Case Histories in Geotechnical Engineering. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482131.008.
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PIERRO, THOMAS, MORJANA SIGNORIN, and JOAO DOBROCHINSKI. "INLET MANAGEMENT STRATEGIES WITH CASE STUDIES FROM FLORIDA." In International Conference on Coastal Sediments 2019. WORLD SCIENTIFIC, 2019. http://dx.doi.org/10.1142/9789811204487_0173.
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Yan, Jiandong, Tianyu Pan, Wenqian Wu, and Qiushi Li. "Experimental Investigation Of Circumferential Inlet Distortion On Partial Surge Type Stall Inception In A Transonic Axial Compressor." In GPPS Xi'an21. GPPS, 2022. http://dx.doi.org/10.33737/gpps21-tc-287.
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This paper will investigate the stability of the compressor with circumferential inlet distortion. An experimental method has been implemented on a transonic axial flow compressor with uniform and three different levels of circumferential distortion inflow intensity. The distortion is introduced by a well-designed gauze upstream of the rotor. Dynamic transducers and steady-state probes have been mounted in multiple locations to monitor the stall event. From previous studies, the circumferential inlet distortion usually increases the stall point mass flow rate. As these papers have shown, it is expected that the stall point mass flow rate increase as the intensity of distortion increases. An unexpected result, however, indicates a smaller stall point mass flow rate in distortion cases when compared to uniform cases. In light of this result, this paper demonstrates the evolution of instability in circumferential distortion conditions and analyses them to explain the reason behind the smaller stall point mass flow rate. The circumferential distortion can alter the development of the stall event. The reduction in the stall point mass flow rate is related to the stall inception of this compressor. In the uniform case, the stall inception is the partial surge originating from the stator hub. In the distortion cases, various unsteady phenomena occur at the stator hub as the compressor approaches the stall point. Those disturbances, however, fail to induce the compressor to stall. In the end, the propagation of spikes can be observed in the record of unsteady pressure transducers mounted on the rotor casing wall, which trigger the whole compressor stall. The decrease of stall point mass flow rate between the uniform case and distortion cases is due to the transformation of stall inception from partial surge to spikes.
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Lee, Hyungyu, Jungsoo Lee, Sangwook Kim, Jinsoo Cho, and Donghwa Kim. "Pre-Swirl System Design Including Inlet Duct Shape by Using CFD Analysis." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76323.
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Fluid characteristics of two different types of duct shapes were studied and the pre-swirl nozzle was designed for partial annulus duct shape by using computational fluid dynamics. The fully annulus inlet duct shape and partial annulus inlet duct shape which are installed in front of the pre-swirl nozzles were compared from aerodynamic perspective. The new pre-swirl nozzle was designed for partial annulus inlet duct shape to resolve aerodynamic disadvantage of partial annulus duct. Design process of new pre-swirl nozzles included the optimization process to maximize the discharge coefficient. Three different pre-swirl system were compared using the discharge coefficient, swirl ratio and temperature drop. The experiments of base pre-swirl system were conducted to validate the CFD methodology and to predict the real pre-swirl system. The scale of experimental rig was one half of real pre-swirl system. As a results, the partial annulus duct with previous pre-swirl nozzles showed 1.1% lower discharge coefficient compared with the fully annulus duct. The new designed pre-swirl nozzle with partial annulus duct increased the discharge coefficient about 1.43% than the case of partial annulus duct with previous pre-swirl nozzle, and showed 0.4% lower discharge coefficient compared with the fully annulus duct shape. The swirl ratio was same through the three pre-swirl models because the three models had the same throat area. The temperature drop was measured between the inlet duct and the exit of receiver holes. In the cases of partial annulus inlet duct, the temperature drop was lower than the fully annulus inlet duct case. The new pre-swirl nozzles could resolve the aerodynamic loss occurred in the case of partial annulus duct with previous nozzles.
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Ames, Forrest E., Pierre A. Barbot, and Chao Wang. "Effects of Aeroderivative Combustor Turbulence on Endwall Heat Transfer Distributions Acquired in a Linear Vane Cascade." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30525.
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Vane endwall heat transfer distributions are documented for a mock aeroderivative combustion system and for a low turbulence condition in a large-scale low speed linear cascade facility. Inlet turbulence levels range from below 0.7 percent for the low turbulence condition to 14 percent for the mock combustor system. Stanton number contours are presented at both turbulence conditions for Reynolds numbers based on true chord length and exit conditions ranging from 500,000 to 2,000,000. Low turbulence endwall heat transfer shows the influence of the complex three-dimensional flow field, while the effects of individual vortex systems are less evident for the high turbulence cases. Turbulent scale has been documented for the high turbulence case. Inlet boundary layers are relatively thin for the low turbulence case while inlet flow approximates a nonequilibrium or high turbulence channel flow for the mock combustor case. Inlet boundary layer parameters are presented across the inlet passage for the three Reynolds numbers and both the low turbulence and mock combustor inlet cases. Both midspan and 95 percent span pressure contours are included. This research provides a well-documented database taken across a range of Reynolds numbers and turbulence conditions for assessment of endwall heat transfer predictive capabilities.
Reports on the topic "Casey Inlier"
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Beck, Tanya, and Ping Wang. Morphodynamics of barrier-inlet systems in the context of regional sediment management, with case studies from West-Central Florida, USA. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/41984.
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The temporal and spatial scales controlling the morphodynamics of barrier-inlet systems are critical components of regional sediment management practice. This paper discusses regional sediment management methods employed at multiple barrier-inlet systems, with case studies from West-Central Florida. A decision-support tool is proposed for regional sediment management with discussion of its application to barrier-inlet systems. Connecting multiple barrier islands and inlets at appropriate spatio-temporal scales is critical in developing an appropriately scoped sediment management plan for a barrier-inlet system. Evaluating sediment bypassing capacity and overall inlet morphodynamics can better inform regional sand sharing along barrier-inlet coastlines; particularly where sediment resources are scarce and a close coupling between inlet dredging and beach placement is vital to long-term sustainable management. Continued sea-level rise and anthropogenic activities may intensify the need for investigating longer-term processes and expanding regional planning at a centennial timescale and are acknowledged as challenging tasks for RSM studies. Specifically, we suggested that a regionally focused, multi-inlet study was necessary for management plan of individual inlet for the west-central Florida case studies. Key recommendations based on the case studies are included.
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Foti, D. J., H. W. Randolph, G. T. Geiger, D. T. Verebelyi, and L. A. Wooten. Four foot septifoil cooling experiment unrestricted inlet/outlet case. Office of Scientific and Technical Information (OSTI), February 1992. http://dx.doi.org/10.2172/10176381.
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Hamm, L. L. APT Blanket System Loss-of-Coolant Accident Based on Initial Conceptual Design - Case 5: External RHR Break Near Inlet Header. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/4890.
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Hamm, L. L. APT Blanket System Loss-of-Coolant Accident (LOCA) Based on Initial Conceptual Design - Case 1: External HR Break Near Inlet Header. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/4916.
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Hamm, L. L. APT Blanket System Loss-of-Coolant Accident (LOCA) Based on Initial Conceptual Design - Case 4: External Pressurizer Surge Line Break Near Inlet Header. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/4914.
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