Relevant bibliographies by topics / Flow geometries

Academic literature on the topic 'Flow geometries'

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Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "Flow geometries"

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Li, Ji‐Ming, and Wesley R. Burghardt. "Flow birefringence in axisymmetric geometries." Journal of Rheology 39, no. 4 (July 1995): 743–66. http://dx.doi.org/10.1122/1.550655.

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Sheng, Ping, and Minyao Zhou. "Fluid Flow in Restricted Geometries." Israel Journal of Chemistry 31, no. 2 (1991): 71–87. http://dx.doi.org/10.1002/ijch.199100008.

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Rallabandi, Bhargav, Alvaro Marin, Massimiliano Rossi, Christian J. Kähler, and Sascha Hilgenfeldt. "Three-dimensional streaming flow in confined geometries." Journal of Fluid Mechanics 777 (July 20, 2015): 408–29. http://dx.doi.org/10.1017/jfm.2015.336.

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Steady streaming vortex flow from microbubbles has been developed into a versatile tool for microfluidic sample manipulation. For ease of manufacture and quantitative control, set-ups have focused on approximately two-dimensional flow geometries based on semi-cylindrical bubbles. The present work demonstrates how the necessary flow confinement perpendicular to the cylinder axis gives rise to non-trivial three-dimensional flow components. This is an important effect in applications such as sorting and micromixing. Using asymptotic theory and numerical integration of fluid trajectories, it is shown that the two-dimensional flow dynamics is modified in two ways: (i) the vortex motion is punctuated by bursts of strong axial displacement near the bubble, on time scales smaller than the vortex period; and (ii) the vortex trajectories drift over time scales much longer than the vortex period, forcing fluid particles onto three-dimensional paths of toroidal topology. Both effects are verified experimentally by quantitative comparison with astigmatism particle tracking velocimetry (APTV) measurements of streaming flows. It is further shown that the long-time flow patterns obey a Hamiltonian description that is applicable to general confined Stokes flows beyond microstreaming.
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GRIFFITH, M. D., T. LEWEKE, M. C. THOMPSON, and K. HOURIGAN. "Pulsatile flow in stenotic geometries: flow behaviour and stability." Journal of Fluid Mechanics 622 (March 10, 2009): 291–320. http://dx.doi.org/10.1017/s0022112008005338.

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Pulsatile inlet flow through a circular tube with an axisymmetric blockage of varying size is studied both numerically and experimentally. The geometry consists of a long, straight tube and a blockage, semicircular in cross-section, serving as a simplified model of an arterial stenosis. The stenosis is characterized by a single parameter, the aim being to highlight fundamental behaviours of constricted pulsatile flows. The Reynolds number is varied between 50 and 700 and the stenosis degree by area between 0.20 and 0.90. Numerically, a spectral element code is used to obtain the axisymmetric base flow fields, while experimentally, results are obtained for a similar set of geometries, using water as the working fluid. For low Reynolds numbers, the flow is characterized by a vortex ring which forms directly downstream of the stenosis, for which the strength and downstream propagation velocity vary with the stenosis degree. Linear stability analysis is performed on the simulated axisymmetric base flows, revealing a range of absolute instability modes. Comparisons are drawn between the numerical linear stability analysis and the observed instability in the experimental flows. The observed flows are less stable than the numerical analysis predicts, with convective shear layer instability present in the experimental flows. Evidence is found of Kelvin–Helmholtz-type shear layer roll-ups; nonetheless, the possibility of the numerically predicted absolute instability modes acting in the experimental flow is left open.
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Oussoren, Andrew, Jovica Riznic, and Shripad Revankar. "ICONE23-2115 MODELING CRITICAL FLOW IN CRACK GEOMETRIES USING TRACE." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2015.23 (2015): _ICONE23–2—_ICONE23–2. http://dx.doi.org/10.1299/jsmeicone.2015.23._icone23-2_44.

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Rajagopalan, Dilip, Arun P. Aneja, and Jean-Marie Marchal. "Modeling Capillary Flow in Complex Geometries." Textile Research Journal 71, no. 9 (September 2001): 813–21. http://dx.doi.org/10.1177/004051750107100911.

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Dockx, Greet, Tom Verwijlen, Wouter Sempels, Mathias Nagel, Paula Moldenaers, Johan Hofkens, and Jan Vermant. "Simple microfluidic stagnation point flow geometries." Biomicrofluidics 10, no. 4 (July 2016): 043506. http://dx.doi.org/10.1063/1.4954936.

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Miller, Ryan M., John P. Singh, and Jeffrey F. Morris. "Suspension flow modeling for general geometries." Chemical Engineering Science 64, no. 22 (November 2009): 4597–610. http://dx.doi.org/10.1016/j.ces.2009.04.033.

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Juntunen, Mika, and Mary F. Wheeler. "Two-phase flow in complicated geometries." Computational Geosciences 17, no. 2 (November 1, 2012): 239–47. http://dx.doi.org/10.1007/s10596-012-9326-y.

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Zumaeta, Nixon, Edmond P. Byrne, and John J. Fitzpatrick. "Predicting precipitate breakage during turbulent flow through different flow geometries." Colloids and Surfaces A: Physicochemical and Engineering Aspects 292, no. 2-3 (January 2007): 251–63. http://dx.doi.org/10.1016/j.colsurfa.2006.06.032.

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Dissertations / Theses on the topic "Flow geometries"

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Moore, Jennifer Anne. "Computational blood flow modelling in realistic arterial geometries." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0008/NQ35257.pdf.

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Wang, Yechun. "Numerical studies of stokes flow in confined geometries." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/2115.

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Thesis (M.S.) -- University of Maryland, College Park, 2004.
Thesis research directed by: Dept. of Chemical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Sopko, James J. "Modeling fluid flow by exploring different flow geometries and effect of weak compressibility." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Jun%5FSopko.pdf.

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Vlachos, Nickolas Dimitris. "Boundary element method of incompressible flow past deforming geometries." Thesis, University of Bristol, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297802.

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Chen, Li-Kwen. "Unsteady flow and heat transfer in periodic complex geometries for the transitional flow regime." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Chen_09007dcc804bed71.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2008.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 12, 2008) Includes bibliographical references.
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Tysell, Lars. "Hybrid Grid Generation for Viscous Flow Computations Around Complex Geometries." Doctoral thesis, KTH, Mekanik, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11934.

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A set of algorithms building a program package for the generation of twoandthree-dimensional unstructured/hybrid grids around complex geometrieshas been developed. The unstructured part of the grid generator is based on the advancing frontalgorithm. Tetrahedra of variable size, as well as directionally stretched tetrahedracan be generated by specification of a proper background grid, initiallygenerated by a Delaunay algorithm. A marching layer prismatic grid generation algorithm has been developedfor the generation of grids for viscous flows. The algorithm is able to handleregions of narrow gaps, as well as concave regions. The body surface is describedby a triangular unstructured surface grid. The subsequent grid layers in theprismatic grid are marched away from the body by an algebraic procedurecombined with an optimization procedure, resulting in a semi-structured gridof prismatic cells. Adaptive computations using remeshing have been done with use of a gradientsensor. Several key-variables can be monitored simultaneously. The sensorindicates that only the key-variables with the largest gradients give a substantialcontribution to the sensor. The sensor gives directionally stretched grids. An algorithm for the surface definition of curved surfaces using a biharmonicequation has been developed. This representation of the surface canbe used both for projection of the new surface nodes in h-refinement, and theinitial generation of the surface grid. For unsteady flows an algorithm has been developed for the deformationof hybrid grids, based on the solution of the biharmonic equation for the deformationfield. The main advantage of the grid deformation algorithm is that itcan handle large deformations. It also produces a smooth deformation distributionfor cells which are very skewed or stretched. This is necessary in orderto handle the very thin cells in the prismatic layers. The algorithms have been applied to complex three-dimensional geometries,and the influence of the grid quality on the accuracy for a finite volumeflow solver has been studied for some simpler generic geometries.
QC 20100812
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Gong, Jing. "Hybrid Methods for Unsteady Fluid Flow Problems in Complex Geometries." Doctoral thesis, Uppsala universitet, Avdelningen för teknisk databehandling, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8341.

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In this thesis, stable and efficient hybrid methods which combine high order finite difference methods and unstructured finite volume methods for time-dependent initial boundary value problems have been developed. The hybrid methods make it possible to combine the efficiency of the finite difference method and the flexibility of the finite volume method. We carry out a detailed analysis of the stability of the hybrid methods, and in particular the stability of interface treatments between structured and unstructured blocks. Both the methods employ so called summation-by-parts operators and impose boundary and interface conditions weakly, which lead to an energy estimate and stability. We have constructed and analyzed first-, second- and fourth-order Laplacian based artificial dissipation operators for finite volume methods on unstructured grids. The first-order artificial dissipation can handle shock waves, and the fourth-order artificial dissipation eliminates non-physical numerical oscillations efficiently. A stable hybrid method for hyperbolic problems has been developed. It is shown that the stability at the interface can be obtained by modifying the dual grid of the unstructured finite volume method close to the interface. The hybrid method is applied to the Euler equation by the coupling of two stand-alone CFD codes. Since the coupling is administered by a third separate coupling code, the hybrid method allows for individual development of the stand-alone codes. It is shown that the hybrid method is an accurate, efficient and practically useful computational tool that can handle complex geometries and wave propagation phenomena. Stable and accurate interface treatments for the linear advection–diffusion equation have been studied. Accurate high-order calculation are achieved in multiple blocks with interfaces. Three stable interface procedures — the Baumann–Oden method, the “borrowing” method and the local discontinuous Galerkin method, have been investigated. The analysis shows that only minor differences separate the different interface handling procedures. A conservative stable and efficient hybrid method for a parabolic model problem has been developed. The hybrid method has been applied to the full Navier–Stokes equations. The numerical experiments support the theoretical conclusions and show that the interface coupling is stable and converges at the correct order for the Navier–Stokes equations.
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Dröge, Marc Theodoor. "Cartesian grid methods for turbulent flow simulation in complex geometries." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2006. http://irs.ub.rug.nl/ppn/298825759.

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Clayton, David James. "Large eddy simulation of non-premixed flow in complex geometries." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428760.

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RONZANI, ERNESTO RIBEIRO. "NUMERICAL SOLUTION OF COMPRESSIBLE AND INCOMPRESSIBLE FLOW IN IRREGULAR GEOMETRIES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1996. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=18648@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
Este trabalho propõe um método numérico de solução de escoamentos de fluidos compressíveis e incompressíveis a qualquer número de Mach em geometrias irregulares. Um sistema bidimensional de coordenadas curvilíneas não-ortogonais,coincidentes com os contornos físicos é utilizado. Os componentes cartesianos de velocidade são usados nas equações da quantidade de movimento e os covariantes na equação da continuidade. Seleciona-se a técnica de volumes finitos para discretizar as equações de conservação relacionadas aos princípios físicos, em regime permanente devido esta preservar a propriedade conservativa das equações e a sua con sistência física no processo numérico. Adota-se a configuração de malha co-localizada, avaliando-se todas as variáveis dependentes nos pontos centrais dos volumes são avaliados com esquemas Power-Law e Quick. Especial atenção é dada ao tratamento numérico das condições de contorno. O problema do acoplamento massa específica-pressão-velocidade é solucionado usando-se uma combinação das equações da continuidade, de quantidade de movimento linear e de uma equação de estado, gerando duas equações de correção da pressão. A primeira corrige a massa específica e a pressão, a segunda, o fluxo de massa e a velocidade. Propõe-se uma modificação da equação da correção da velocidade usando um termo de compensação do erro obtido na sua avaliação a fim de acelerar a convergência. Utilizam-se vários tipos de interpolação da massa específica na face, para minimizar as atenuações das variáveis, causadas pela falsa difusão. Para a solução das equações algébricas resultantes usa-se o algoritmo TDMA linha por linha e um processo de correção por blocos para acelerar a convergência. O método proposto é verificado em seis problemas testes, através da comparação com os resultados analíticos e numéricos disponíveis na literatura.
The present work consists in the development of a numerical method of solution of compressible and incompressible fluid flow for all speed in iregular geometries. A boundary-fitted two-dimensional nonorthogonal curvilinear coordinate systeam is utilized. The cartesian velocity components are the dependent variables in the momentum equations and covariant velocity components are used in the continuity equation. The finite-volume technique was selected to discretuze the steady-state physical phenomenon conservation equations, since this method keeps the conservative property of the equations and its physical consistency in the numerical process. A nonstaggered grid was employed, and all dependent variables are evaluated at the cell center points, which divides the physical domain. The convection-diffusion fluxes at the control volumes faces are evaluated with the Power Law and Quick shemes. Special attention is paid to the numerical treatment of boundary conditions. The problem of velocity-pressure-density coupling is solved using a combination of continuity, momentum equations and state equation resulting in two pressure correction equations. The first equation corrects the density and the pressure, the second equation corrects the mass flux and the velocity. A modification in the velocity correction equations is proposed using a compensationterm to accelerate the convergence. Several types of interpolation of the face density are used to reduce variable atenuations, caused by false diffusion. For the solution of the resulting algebric equations,the line-by-line TDMA algorith is used as well as a block-correction method to accelerate the convergence. The proposed method is verified on six test problems,by comparing the present results with analytical and numerical results avaiable in the literature.
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Books on the topic "Flow geometries"

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Yan, Jing. Simulation of non-Newtonian flow in complex geometries. Manchester: UMIST, 1997.

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Rhode, D. L. Predictions and measurements of isothermal flowfields in axisymmetric combustor geometries. [Washington, D.C.]: National Aeronautics and Space Administration, 1985.

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Ballyk, Peter D. Numerical modeling of non-Newtonian blood flow in physiological geometries. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1993.

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Caughey, D. A. Multigrid methods for aerodynamic problems in complex geometries: Final report. [Washington, D.C: National Aeronautics and Space Administration, 1995.

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Brink, Coen E. ten. Development of porphyroclast geometries during non-coaxial flow: An experimental and analytical investigation. [Utrecht: Faculteit Aardwetenschappen, Universiteit Utrecht], 1996.

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Rock, Ross Charles Kolkka. A numerical investigation of turbulent interchange mixing of axial coolant flow in rod bundle geometries. Ottawa: National Library of Canada, 1998.

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Boyle, Robert J. Heat transfer predictions for two turbine nozzle geometries at high Reynolds and Mach numbers. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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Boyle, Robert J. Heat transfer predictions for two turbine nozzle geometries at high Reynolds and Mach numbers. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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Rosemann, Henning. Einfluss der Geometrie von Mehrfach-Hitzdrahtsonden auf die Messergebnisse in turbulenten Stromungen. Koln: DLR, 1989.

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Trapp, Jens. Parametrisches Geometrie-Design fur die Aerodynamik. Göttingen: [Deutsches Zentrum für Luft- und Raumfahrt], 1999.

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Book chapters on the topic "Flow geometries"

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Chow, Bennett, and Dan Knopf. "The Ricci flow of special geometries." In Mathematical Surveys and Monographs, 1–19. Providence, Rhode Island: American Mathematical Society, 2004. http://dx.doi.org/10.1090/surv/110/01.

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Kleine, H., and K. Hiraki. "Supersonic flow over double cone geometries." In Shock Waves, 101–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/978-3-540-27009-6_11.

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Hüttl, T. J., M. Smieszek, M. Fröhlich, M. Manhart, R. J. D. Schmidt, and R. Friedrich. "Numerical flow simulation in cylindrical geometries." In High Performance Computing in Science and Engineering ’99, 267–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-59686-5_23.

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Philipse, Albert P. "Flow Past Spheres and Simple Geometries." In Brownian Motion, 105–20. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98053-9_8.

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Deister, F., D. Rocher, E. H. Hirschel, and F. Monnoyer. "Self-Organizing Hybrid Cartesian Grid Generation and Solutions for Arbitrary Geometries." In Numerical Flow Simulation II, 19–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-540-44567-8_2.

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Deister, F., D. Rocher, E. H. Hirschel, and F. Monnoyer. "Adaptively Refined Cartesian Grid Generation and Euler Flow Solutions for Arbitrary Geometries." In Numerical Flow Simulation I, 25–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-540-44437-4_2.

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Forrer, Hans, and Marsha Berger. "Flow Simulations on Cartesian Grids Involving Complex Moving Geometries." In Hyperbolic Problems: Theory, Numerics, Applications, 315–24. Basel: Birkhäuser Basel, 1999. http://dx.doi.org/10.1007/978-3-0348-8720-5_34.

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Kruthiventi, Saisarath, Subbarao Rayapati, Sai Nikhil, and Manideep. "Experimental Studies Involving Flow Visualization Over Non-circular Geometries." In Recent Advances in Chemical Engineering, 21–28. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1633-2_3.

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Leveque, Randall J., and Donna Calhoun. "Cartesian Grid Methods for Fluid Flow in Complex Geometries." In Computational Modeling in Biological Fluid Dynamics, 117–43. New York, NY: Springer New York, 2001. http://dx.doi.org/10.1007/978-1-4613-0151-6_7.

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Bellout, Hamid, and Frederick Bloom. "Incompressible Bipolar Fluid Dynamics: Examples of Other Flows and Geometries." In Incompressible Bipolar and Non-Newtonian Viscous Fluid Flow, 137–237. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00891-2_3.

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Conference papers on the topic "Flow geometries"

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Cain, Alan, Edward Kerschen, Julianna Tassy, and Ganesh Raman. "Simulation of Powered Resonance Tubes: Helmholtz Resonator Geometries." In 2nd AIAA Flow Control Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-2690.

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Morgan, Philip, and Miguel Visbal. "Application of Hybrid RANS/LES to Geometries with Separated Flows." In 3rd AIAA Flow Control Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.2006-3028.

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de Swaan, Abraham. "Transient Fluid Flow through Composite Geometries." In International Petroleum Conference and Exhibition of Mexico. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/36777-ms.

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Jebauer, Steffen, and Justyna Czerwinska. "Slip Flow Structures in Confined Geometries." In ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2008. http://dx.doi.org/10.1115/icnmm2008-62125.

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This paper presents various flow structures related to velocity slip and temperature jump in very low Reynolds number gas flow. The structures differ significantly from the ones observed in continuum regime for laminar flow, especially if the geometry has complex structure, which is very often the case in microfluidic devices. We are modelling the flow as a continuum Navier-Stokes gas flow with additional velocity slip and temperature jump boundary conditions for curved surfaces for slip flows with Knudsen numbers Kn < 0.1. For complex channel geometries with obstacles and curved walls vortex patterns are observed that are related to the thermal stress slip flow. This type of flow is induced only when non-uniform temperature distributions inside flow domains are present. The investigated geometries consist of one or more cylinder walls with diameters of up to a few 100 μm placed inside of confined microchannels, with all setups being two-dimensional. In gaseous microdevices the resulting complex flow patterns can be utilised to enhance mixing or heat transfer.
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EKATERINARIS, JOHN, DON GIDDENS, and N. SANKAR. "Compressible flow solutions in constricted duct geometries." In 23rd Joint Propulsion Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-2167.

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Teixeira, Odelma, and Jose Pascoa. "Hypersonic Flow Simulation towards Space Propulsion Geometries." In AeroTech Europe. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2019. http://dx.doi.org/10.4271/2019-01-1873.

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Sohail, Muhammad Amjad, Yan Chao, Zhang Hui Hui, and Rizwan Ullah. "CFD on hypersonic flow geometries with aeroheating." In 9TH INTERNATIONAL CONFERENCE ON MATHEMATICAL PROBLEMS IN ENGINEERING, AEROSPACE AND SCIENCES: ICNPAA 2012. AIP, 2012. http://dx.doi.org/10.1063/1.4765597.

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Ettehadi Osgouei, Reza, Mehmet Evren Ozbayoglu, Murat Ahmet Ozbayoglu, and Ertan Yuksel. "Flow Pattern Identification Of Gas-Liquid Flow Through Horizontal Annular Geometries." In SPE Oil and Gas India Conference and Exhibition. Society of Petroleum Engineers, 2010. http://dx.doi.org/10.2118/129123-ms.

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ISAAC, K., and A. NEJAD. "Computation of recirculating compressible flow in axisymmetric geometries." In 23rd Aerospace Sciences Meeting. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-185.

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AGRAWAL, S., T. KINARD, and V. VATSA. "Transonic Navier-Stokes flow computations over wing-fuselage geometries." In 9th Applied Aerodynamics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-3205.

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Reports on the topic "Flow geometries"

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Frouzakis, Christos E., George K. Giannakopoulos, Mahmoud Jafargholi, Stefan G. Kerkemeier, Misun Min, Ananias G. Tomboulides, Paul F. Fischer, and Scott Parker. Flow, Mixing and Combustion of Transient Turbulent Gaseous Jets in Confined Cylindrical Geometries. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1483962.

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Bottoni, M., and R. W. Lyczkowski. Modelling of bubbly and annular two-phase flow in subchannel geometries with BACCHUS-3D/TP. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/10134158.

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Ayoul-Guilmard, Q., S. Ganesh, M. Nuñez, R. Tosi, F. Nobile, R. Rossi, and C. Soriano. D5.3 Report on theoretical work to allow the use of MLMC with adaptive mesh refinement. Scipedia, 2021. http://dx.doi.org/10.23967/exaqute.2021.2.002.

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This documents describes several studies undertaken to assess the applicability of MultiLevel Monte Carlo (MLMC) methods to problems of interest; namely in turbulent fluid flow over civil engineering structures. Several numerical experiments are presented wherein the convergence of quantities of interest with mesh parameters are studied at different Reynolds’ numbers and geometries. It was found that MLMC methods could be used successfully for low Reynolds’ number flows when combined with appropriate Adaptive Mesh Refinement (AMR) strategies. However, the hypotheses for optimal MLMC performance were found to not be satisfied at higher turbulent Reynolds’ numbers despite the use of AMR strategies. Recommendations are made for future research directions based on these studies. A tentative outline for an MLMC algorithm with adapted meshes is made, as well as recommendations for alternatives to MLMC methods for cases where the underlying assumptions for optimal MLMC performance are not satisfied.
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4

Slattery, Kevin. Unsettled Topics on Surface Finishing of Metallic Powder Bed Fusion Parts in the Mobility Industry. SAE International, January 2021. http://dx.doi.org/10.4271/epr2021001.

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Laser and electron-beam powder bed fusion (PBF) additive manufacturing (AM) technology has transitioned from prototypes and tooling to production components in demanding fields such as medicine and aerospace. Some of these components have geometries that can only be made using AM. Initial applications either take advantage of the relatively high surface roughness of metal PBF parts, or they are in fatigue, corrosion, or flow environments where surface roughness does not impose performance penalties. To move to the next levels of performance, the surfaces of laser and electron-beam PBF components will need to be smoother than the current as-printed surfaces. This will also have to be achieve on increasingly more complex geometries without significantly increasing the cost of the final component. Unsettled Topics on Surface Finishing of Metallic Powder Bed Fusion Parts in the Mobility Industry addresses the challenges and opportunities of this technology, and what remains to be agreed upon by the industry.
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Berger, Marsha. Adaptive Methods for Euler Flows in Complex Geometries. Fort Belvoir, VA: Defense Technical Information Center, May 1997. http://dx.doi.org/10.21236/ada329682.

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6

Berger, Marsha, Michael Aftosmis, and Marian Nemec. Moving Geometries and Viscous Flows Using Embedded-boundary Cartesian Grids. Fort Belvoir, VA: Defense Technical Information Center, November 2009. http://dx.doi.org/10.21236/ada515860.

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7

Galea, John I., Steven A. Orszag, and K. P. Sreenivasan. Time-Dependent Simulations of Laminar and Turbulent Flows in COIL Geometries. Fort Belvoir, VA: Defense Technical Information Center, June 2000. http://dx.doi.org/10.21236/ada384706.

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8

Moukalled, Fadl. The Geometric Conservation Based Algorithms For Multi-Fluid Flow At All Speeds. Fort Belvoir, VA: Defense Technical Information Center, September 2002. http://dx.doi.org/10.21236/ada410325.

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9

Ecer, Akin. A Zonal Approach to the Design of Finite Element Grids for 3-D Transonic Flows with Complex Geometries. Fort Belvoir, VA: Defense Technical Information Center, June 1985. http://dx.doi.org/10.21236/ada162168.

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