Relevant bibliographies by topics / CFD design

Academic literature on the topic 'CFD design'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "CFD design"

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CHO, SU K., and VAMSHI M. KORIVI. "PORT DESIGN OPTIMIZATION USING CFD ANALYSIS." Journal of Advanced Manufacturing Systems 03, no. 01 (June 2004): 21–32. http://dx.doi.org/10.1142/s0219686704000375.

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Shape of ports that are part of an engine cylinder head is vital to engine performance and emissions. The advance of CFD (Computation Fluid Dynamics) analysis technology helps designers run the simulation to improve the port design and to provide the better model for a flow bench test. This paper presents the automation of design optimization process integrating CAD modeling, mesh generation and CFD simulation.
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Burger, C. J., S. J. van der Spuy, and T. W. von Backström. "Design of a Compact Crossover Diffuser for Micro Gas Turbines Using a Mean-Line Code." International Journal of Turbo & Jet-Engines 36, no. 4 (November 18, 2019): 347–57. http://dx.doi.org/10.1515/tjj-2017-0021.

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Abstract The design and validation of a Compact Crossover Diffuser (CCD) to replace the size-limited radial diffuser and axial de-swirl cascade of an existing Micro Gas Turbine (MGT) is discussed. A CCD strives to combine the performance of a channel diffuser with the operating range and efficiency of a vaneless diffuser. The development of a one-dimensional Mean-Line Code (MLC) is presented, which aids the designer in preliminary design and performance evaluation of the CCD. Design graphs indicating the performance effects of changing the primary design variables are developed and shown. The MLC is numerically validated using Computational Fluid Dynamics (CFD). Good agreement is seen between the MLC and CFD results, predicting the design point PRss(2-4) to within 1.4 %. A CFD optimized CCD was manufactured and tested. Agreement between the CFD and experimental results for PRts(0-4) is within 7.58 % at 106 kRPM. A numerically predicted increase in PRts(0-4) from 3.31, to 3.53, to 3.83 is seen for the vaneless-, MLC optimized-, and CFD optimized-design respectively. An experimental increase of 82.3 % in engine thrust and 80.0 % in total-to-static pressure recovery across the compressor stage was measured when retrofitting the BMT120KS with a new impeller and CCD.
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TAKAI, Michio. "CFD in Ship Design." Journal of the Society of Mechanical Engineers 105, no. 999 (2002): 82–85. http://dx.doi.org/10.1299/jsmemag.105.999_82.

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van Driel, Michael R. "Cardioplegia heat exchanger design modelling using computational fluid dynamics." Perfusion 15, no. 6 (December 2000): 541–48. http://dx.doi.org/10.1177/026765910001500611.

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A new cardioplegia heat exchanger has been developed by Sorin Biomedica. A three-dimensional computer-aided design (CAD) model was optimized using computational fluid dynamics (CFD) modelling. CFD optimization techniques have commonly been applied to velocity flow field analysis, but CFD analysis was also used in this study to predict the heat exchange performance of the design before prototype fabrication. The iterative results of the optimization and the actual heat exchange performance of the final configuration are presented in this paper. Based on the behaviour of this model, both the water and blood fluid flow paths of the heat exchanger were optimized. The simulation predicted superior heat exchange performance using an optimal amount of energy exchange surface area, reducing the total contact surface area, the device priming volume and the material costs. Experimental results confirm the empirical results predicted by the CFD analysis.
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Lin, Chen-Jiann, Tseng-Hsiang Tse, Liu-Cheng Che, and Liang-Ming Tsai. "Computer aided design and analysis on distributors in DAC columns." MATEC Web of Conferences 185 (2018): 00024. http://dx.doi.org/10.1051/matecconf/201818500024.

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Dynamic axial compression (DAC) columns are key elements in simulated moving bed, which is a chromatography process in drug industry and chemical engineering. In this study, rules for designing distributors are proposed based on mass conservation and validated by experiments, the computer aided design (CAD) and the computational fluid dynamics (CFD). Experimental works are conducted to choose feasible numerical parameters for simulations. In CFD, the transient laminar flow fields are governed by the momentum and species transport equations with Darcy's law to model the porous zone in the packed bed. Results show that CFD combined with CAD solid modelling is a good approach to explore detailed flow fields in DAC columns and carry out parameter analysis for innovative designs. For further testing and evaluation, a new model of compound distributor is designed, 3D printed and processed in factory for practical applications in preparative chromatography.
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Guo, Zhong Quan, Jian Xia Liu, and Wen Cai Luo. "Parametric Modeling and Simulation for Aerodynamic Design of Launch Vehicle." Applied Mechanics and Materials 101-102 (September 2011): 697–701. http://dx.doi.org/10.4028/www.scientific.net/amm.101-102.697.

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Aerodynamic design of launch vehicle is facing combinatorial explosion problem caused by modular design. In order to get basic feasible solution from huge design space, the efficiency of design and simulation must be improved. In this paper, a parametric modeling and simulation method is proposed, which is based on CAD/CFD tools. Firstly, the design Variables of the launch vehicle are divided into three categories: size parameters, configuration parameters and mesh parameters. Secondly, parametric geometry model, including size and configuration parameters, is obtained by secondary development of Pro/ENGINEER. Thirdly, parametric mesh files for CFD are generated by implementing CFD-GEOM with scripts written in Python. By specifying boundary conditions through command stream of GAMBIT, FLUENT software will run automatically to calculate the aerodynamic performance of the launch vehicle. Finally, a graphical user interface (GUI) is developed using VC++6.0. With this system, the integration of CAD/CFD application is achieved. As long as designers enter certain design parameters in the GUI, they will quickly achieve 3D geometry model and aerodynamic performance of the launch vehicle. Application examples show that, this system can significantly improve the efficiency of aerodynamic design of the launch vehicle, and the data error between simulation and experiment is less than 10%, which is acceptable.
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A., Aswandi, B. L. Syaefullah, D. A. Iyai, and M. Jen Wajo. "UTILIZATION OF CARBOHYDRATE POTENTIAL IN VARIOUS KINDS OF BANANA COB FLOUR BANANA IN KACANG GOATS." IRAQI JOURNAL OF AGRICULTURAL SCIENCES 53, no. 4 (August 30, 2022): 732–42. http://dx.doi.org/10.36103/ijas.v53i4.1583.

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The objective of this research was to observe the productivity in kacang goats which were given a complete feed containing flour of various types of banana plant weevils. The material studied in this study was six complete types of feed. Complete feed containing weevil flour from 5 banana plant varieties. Complete feed is prepared with a complete feed composition. The cattle used were 18 male bean goats, mean initial body weight, 15.42 ± 1.98 kg (CV: 13.73%) aged 10-15 months. Livestock is given complete feed containing banana weevil flour for 60 days. The cage is 12 m x 6m in size, construction has a floor platform as high as 140 cm, the enclosure is 1 x 1 m in size and 130 cm in height, equipped with a drinking area. The treatment was in the form of 6 complete types of feed with different formulations, consisting of CF0, CF1, CF2, CF3, CF4, and CF5 containing banana weevil flour with different varieties and control treatment (CF0). The research design used was a completely randomized design with five treatments of complete feed formulas containing hump flour of various banana varieties.The results of the research that the complete feed formulation containing Batu banana hump flour (CF2) and Kapok (CF3) produced the best productivity and performance response of Kacang goat. compared to treatment; CF0 CF1; CF4 and CF5.
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Cervantes, Michel J., and T. Fredrik Engstro¨m. "Factorial Design Applied to CFD." Journal of Fluids Engineering 126, no. 5 (September 1, 2004): 791–98. http://dx.doi.org/10.1115/1.1792277.

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Factorial design, a statistical method widely used for experiments, and its application to CFD are discussed. The aim is to propose a systematic, objective, and quantitative method for engineers to design a set of simulations in order to evaluate main and joint effects of input parameters on the numerical solution. The input parameters may be experimental uncertainty on boundary conditions, unknown boundary conditions, grid, differencing schemes, and turbulence models. The complex flow of the Turbine-99 test case, a hydropower draft tube flow, is used to illustrate the method, where four factors are chosen to perform a 24 factorial design. The radial velocity at the inlet (not measured) is shown to have an important influence on the pressure recovery (7%) and the energy loss factor (49%).
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Hornsby, Craig. "CFD — driving pump design forward." World Pumps 2002, no. 431 (August 2002): 18–22. http://dx.doi.org/10.1016/s0262-1762(02)80195-x.

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Cortella, Giovanni. "cfd-aided retail cabinets design." Computers and Electronics in Agriculture 34, no. 1-3 (May 2002): 43–66. http://dx.doi.org/10.1016/s0168-1699(01)00179-x.

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Dissertations / Theses on the topic "CFD design"

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Vangbo, Petter Olav. "CFD in conceptual ship design." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15480.

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Computational Fluid Dynamics (CFD) has been around for many years. It is a computer tool that can be used to find the hydrodynamic fluid performances. In ship design it is used in a wide area from smoke propagation to resistance estimations. It is however in resistance estimations that CFD have had most focus and research. There are many tools a designer can make use of nowadays. Most of the tools are computer based. This is optimization algorithms, computer aided design (CAD) and computational fluid dynamics (CFD). Using the tools should shorten the time of ship design and make better solutions. I have used a computer tool that mixes optimization with model variation (CAD) and verification (CFD). My conclusion is that it is a powerful tool to use, but should be handled with care. Few variables in the optimization process are important. Conceptual design methodology could be broken down to two outer ranges; point based design and set based design. The methods are quite different when approaching a complex design problem. There seems to be some favor in set based design when coming to a global ‘optimized’ solution to the design problem. More knowledge is gathered in set based design before deciding the final requirements and parameters. This is especially in new developing design where little knowledge is produced in the past. CFD is a broad term. There is many different methods and area of use. In this thesis I will break it down to two terms; potential codes and RANSE codes. Potential codes are easy, robust and well developed. RANSE codes are difficult, takes a lot of time and not so well developed. Potential codes are used in areas where turbulent flows are not present, while RANSE codes are used when it is present and important to the result. If designing new innovative hulls CFD should be used earlier in the design process and with a simulation driven design approach. Simulation driven design could be used with potential codes or RANSE codes. To have a high value rate of the modeling potential codes should be used when many sets of variation I needed and turbulence is not important to the answers. RANSE code should be used when turbulent flow is important to the answer, but must be done with few sets of variations because of high computational effort. If designing a more standard ship, CFD should be used in a modeling design approach to verify the performance estimations that have been done earlier in the process.
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Graysmith, J. L. "Using CFD in engine design." Thesis, University of Warwick, 1995. http://wrap.warwick.ac.uk/4252/.

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In this thesis the author presents two areas of work; exploring the integration of Computational Fluid Dynamics (CFD) into engine design for Jaguar Cars Ltd and developing a novel 'mesh construction' method for making mesh generation both easy and fast. It is concluded that Jaguar can use CFD in the evaluation stage of the engine design process, although not in the concept stage of design. The CFD predictions are shown to be useful for detecting flow related faults and determining the general flow trends, but they should not be used as an absolute measure of the flow variables. The author has determined an efficient method for obtaining good quality meshes using commercial modelling and mesh generation software which requires a skilled CFD analyst. Steady flow analysis of an engine port and cylinder design could currently be completed in about six weeks using a high-powered workstation. The author recommends dedicated workstations for CFD analysis and training Jaguar's draughtsmen to create CAD models with computer analysis requirements in mind. The author's mesh construction program automatically joins two overlapping meshes or cuts one mesh from another. Whilst the program works well on the test cases considered, it is not at a stage for commercial exploitation. Further development is therefore recommended.
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Thompson, Peter Mark. "Computation of CAD-based design velocities for aerodynamic design optimisation with adjoint CFD data." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675476.

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This thesis describes the investigation and development of a novel CAD-based aerodynamic optimisation system, with the aim of allowing gradient-based optimisation of feature-based, parametric models within commercial CAD packages in timescales acceptable for industrial design processes. The process developed is based on linking parametric design velocities (geometric sensitivities computed from the CAD model representing the displacement of a point on the model boundary due to a perturbation of a CAD model parameter) with adjoint surface mesh sensitivities (which represent the derivative of a goal function with respect to surface mesh node position). A CAD-based design velocity computation method has been developed based on projection between discrete representations of perturbed geometries which can be linked to virtually any existing commercial CAD system. A key characteristic of the approach is that it can cope with the discontinuous changes in CAD model topology and face labelling that can occur under even small changes in CAD parameters. Use of the above approach allows computation of parametric sensitivities with respect to aerodynamic coefficients for native CAD parameters within feature-based commercial CAD modelling systems using adjoint data at a computational cost of just one adjoint analysis per objective function and one design velocity field evaluation per parameter. Gradient computation is demonstrated on test cases for an aerofoil model, a turbine blade model and a 3D wing model. Using these computed sensitivities enables the creation of a truly CAD-based aerodynamic optimisation system incorporating adjoint CFD data and using design velocities for computing geometric sensitivities and as input to a mesh deformation step. A prototype implementation of this system is presented and used to optimise a parametric CAD-based aerofoil model. In order to develop the approach further, future work should focus on resolving issues encountered when using design velocities for mesh deformation, extending the approach to more complex test cases, and potentially incorporating parametric effectiveness as a measure of the suitability of a given CAD parameterisation for optimisation purposes.
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Shi, Yijian. "Off-design waverider flowfield CFD simulation /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9717164.

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King, Matthew Lee. "A CAD-centric Approach to CFD Analysis With Discrete Features." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd570.pdf.

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Pulugundla, Gautam. "CFD design analysis of ventilated disc brakes." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/6578.

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This thesis reports the numerical investigation of the automotive ventilated disc brake rotor. Disc brakes operate on the principle of friction by converting kinetic energy into heat energy. The main objective of a disc brake rotor is to store this heat energy and dissipate it as soon as possible. This work is carried out in a area where there is very limited understanding. Commercial CFD code FLUENT was used for carrying out the simulations with the rotor rotating in still air. Only one passage and blade were simulated as all the rotor passages were identical. Uniform temperatures were used on the rotor to simulate the braking condition. Sixteen different blade angle sets were simulated and the range of blade angles having the best aero-thermal performance were identified using mass flow rate, rate of heat dissipation and temperature uniformity as performance metrics. The effect of rotational speed and rotor temperature (corresponding to various braking conditions) on the aero-thermal performance was evaluated. The rotor speed and temperature were observed to have significant effect on the rotor performance. The number of blades in the ventilated disc brake rotor was also varied and was observed to have an impact on the aero-thermal performance of the disc brake rotor. Detailed design changes like inlet chamfer, blade leading edge rounding, and variable thickness blade and passage aspect ratio were incorporated. All these changes did have an effect on the aero-thermal performance of the disc brake rotor. The inlet chamfer and the leading edge rounding improved both the rate of heat transfer and the temperature uniformity. The variable thickness blade and the lower aspect ratio passage improved the temperature uniformity of the rotor.
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Macchion, Olivier. "CFD in the design of gas quenching furnace." Doctoral thesis, Stockholm : Department of Mechanics, Royal Institute of Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-239.

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Guiza, Ghalia. "Reliable and Adaptive CFD Framework for Airship Design." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM021.

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Cette thèse porte sur la modélisation et la simulation numérique d'écoulements instationnaires et turbulents dans un contexte d'aérodynamique externe. L'étude proposée contribue au développement de méthodes adaptées aux écoulements incompressibles, monophasiques et multiphasiques, autour de divers corps profilés et non-profilés. Celles-ci reposent sur une méthode éléments finis stabilisés innovante de type Variational Multiscale (VMS), dans laquelle la solution est décomposée a priori en une grande échelle résolue et une petite échelle modélisé, dont l’effet sur la grande échelle est pris en compte au travers de termes sources proportionnels aux résidus des équations du problème grande échelle. Une procédure automatique est utilisée afin de générer des maillages hybrides combinant une région interne structurée en strates et conforme à la théorie des couches limites, et une région externe non structurée et adaptée via un estimateur d’erreur VMS sous la contrainte d’un nombre d’éléments fixé. Pour les cas mettant en jeu plusieurs phases immiscibles, une méthode level-set est utilisée afin de suivre précisément les interfaces tout en prenant en compte les effets de tension de surface. L'originalité et l'enjeu principal de cette thèse résident dans le couplage de ces différentes approches en une formulation unifiée, et leur mise en oeuvre dans un contexte de calcul massivement parallèle. Plusieurs cas-tests en deux et trois dimensions sont présentés afin de démontrer la précision et la robustesse des outils proposés. Le solveur est ensuite utilisé pour analyser l'aérodynamique du Stratobus, un dirigeable stratosphérique développé par Thalès Alenia Space et destiné à un large éventail d’applications civiles ou militaires. En régime permanent, une hypothèse d’enveloppe rigide permet de prédire les forces exercées sur la structure en bon accord avec l’expérience. L'effet du slosh d'un ballonet d'hélium placé à l'intérieur de l'enveloppe est également simulé afin de caractériser la dynamique du dirigeable durant la phase de décollage
This thesis is devoted to the modeling and the numerical simulation of unsteady, turbulent flows relevant to external aerodynamic applications. The proposed study aims at developing methods suited to incompressible, monophase and multiphase flows around various slender and non-slender bodies. The latter rely on the Variational Multiscale (VMS) stabilized finite element method, that introduces an a priori decomposition of the solution into coarse and fine scale components. The general idea is that only the large scales are fully represented and resolved at the discrete level, while the effect of the small unresolved scales is taken into account by means of consistently derived source terms proportional to the residual of the resolved scale solution. An automatic procedure is used to build complex meshes combining a multilayer inner region structured according to the boundary layer theory, and an external non-structured region refined using a VMS error estimator under the constraint of a fixed number of nodes. For cases involving several immiscible phases, an advanced level-set method is used to accurately follow the interfaces while accounting for surface tension effects. The coupling between these various components into a unified formulation, and their implementation in a context of high performance computing, make for the novelty and the main objective of this thesis. Several test-cases in two and three dimensions are presented to assess the accuracy and the robustness of the proposed methods. The solver is then used to analyze the aerodynamics of the Stratobus, a stratospheric airship designed by Thalès Alenia Space for a wide range of civilian and military operations. In the permanent regime, a rigid envelope assumption allows predicting the forces exerted on the structure in good agreement with the experiments. The effect of a lighter-than-air ballonet slosh located in the hull is also simulated to characterize the airship dynamics during take-off
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Lanchman, Troy J. "Using CFD to Improve Off-Design Throughflow Analysis." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1559828068015963.

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Poutiainen, Aaron. "Undertray Design and Development Procedure with CFD : An Optimization Study of Different UndertrayDesigns with CFD Computations." Thesis, KTH, Strömningsmekanik och Teknisk Akustik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301732.

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Race car aerodynamics has played a vital part to improve lap times over the years of motor racing. Having good road adhesion with slick tires and aerodynamic downforce will increase the vehicles maximum lateral force and thus higher cornering speeds can be achieved. The undertray and diffuser is the most efficient aerodynamic component on most racing vehicles and is capable of producing six times more downforce than its contribution to drag plus, if optimized correctly, able to significantly reduce the vehicle's drag coefficient. The intent of this project is to optimize a completely unique undertray design for the KTH Formula Student teams racing vehicle DeV17. The undertray is inspired by the Aston Martin Valkyrie venturi tunnel design and is optimized by iterative change in CAD design parameters for three different chassis designs. The results are obtained with CFD RANS simulations using the k-ω (SST) turbulence model with the Siemens Star-CCM+software. The optimum design gave 530 N and 90 N of downforce and drag respectively at a velocity of 80km/h. The venturi tunnel design is proven to give a 29% downforce improvement over a conventional flat plate design with stronger longitudainal vortices and lower, more widespread, minimum pressure distribution. The most important aspects that affect downforce in undertray design is concluded to be a diffuser outlet height, upsweep and vehicle ground clearance. No specific aerodynamic advantages in having a convergent tapering of the tunnel cross-section is observed, meaning the undertray can be represented as only consisting of an expanding diffuser. The tunnel design is considered to give promising track testing results and be a spark for further innovative ideas with aerodynamic design for both the automotive and racing industry.
Tävlingsbilars aerodynamik has spelat en viktig roll för att förbättra varvtiderna under åren inom motorsport. Att ha god väghäftning med 'slicks' däck och aerodynamisk nedåtkraft kommer att öka fordonets maximala sidokraft förmåga och därmed kan högre hastigheter i kurvor uppnås. Underredet och diffusern är den mest effektiva aerodynamiska komponenten på de flesta racerfordon och kan producera sex gånger mer nedåtkraft än dess bidrag till luftmotståndet och, om den optimeras korrekt, kan den avsevärt minska fordonets luftmotståndskoefficient. Syftet med detta projekt är att optimera en helt unik underredes design för KTH Formula Student lagets racingfordon DeV17. Underredet är inspirerat av Aston MArtin Valkyrie venturitunnel design och optimeras av iterativ förändring av CAD designparametrar för tre olika chassidesigner. Resultaten erhålls med CFD RANS-simuleringar med turbulensmodellen k-ω (SST) och programvaran Siemens Star-CCM+. Den optimala designen gav 530 N och 90 N nedåtkraft respektive luftmotstånd under en hastighet på 80 km/h. Venturitunnel designen har visat sig ge en förbättring på 29% nedåtkraft jämfört med en konventionell platt design, med starkare längsgående virvlar och lägre, mer utbredd, minimitryckfördelning. De viktigaste aspekterna som påverkar nedåtkraft i underredes designen dras som slutsats till att vara diffuser utloppets höjd, upphöjning vinkeln och fordonets markfrigång. Inga specifika aerodynamiska fördelar med att ha en konvergerande avsmalning av tunnelns tvärsnitt obververades, vilket innebär att underredet kan antas endast bestå av en expanderande diffuser. Tunneldesignen anser ge lovande bantestresultat och vara en gnista för ytterliga innovativa idéer inom aerodynamisk design för både bil- och racingindustrin.
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Books on the topic "CFD design"

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North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Turbomachinery design using CFD. Neuilly sur Seine, France: AGARD, 1994.

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Graysmith, J. L. Using CFD in engine design. [s.l.]: typescript, 1995.

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International Symposium on CFD and CAD in Ship Design (1990 Wageningen, Netherlands). CFD and CAD in ship design: Proceedings of the International Symposium on CFD and CAD in Ship Design, Wageningen, the Netherlands, 25-26 September 1990. Amsterdam: Elsevier, 1990.

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Mather A. R. Sadiq Al-Baghdadi. CFD models for analysis and design of PEM fuel cells CFD models for analysis & design of PEM fuel cells. New York: Nova Science Publishers, 2008.

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Santoro, Robert J. Detailed experimental data for CFD code validation. University Park, PA: Propulsion Engineering Research Center, College of Engineering, Pennsylvania State University, 1998.

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Ranganayakulu, C., and K. N. Seetharamu. Compact Heat Exchangers - Analysis, Design and Optimization using FEM and CFD Approach. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119424369.

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Jung, Jonghwun. Design and understanding of fluidized-bed reactors: Application of CFD techniques to multiphase flows. Saarbrücken: VDM Verlag Dr. Müller, 2009.

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Newman, Perry A. Observations regarding use of advanced CFD analysis, sensitivity analysis, and design codes in MDO. Hampton, VA: Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, 1996.

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Maher A. R. Sadiq Al-Baghdadi. CFD modeling and analysis of different novel designs of air-breathing PEM fuel cells. Hauppauge, N.Y: Nova Science Publishers, 2009.

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Maher A. R. Sadiq Al-Baghdadi. CFD modeling and analysis of different novel designs of air-breathing PEM fuel cells. New York: Nova Science Publishers, 2010.

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Book chapters on the topic "CFD design"

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Friedman, Avner. "Aerodynamic design with cfd." In Mathematics in Industrial Problems, 161–68. New York, NY: Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4613-9177-7_17.

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Woloshyn, Jennifer, Lanre Oshinowo, and John Rosten. "Digester Design Using CFD." In Essential Readings in Light Metals, 350–55. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48176-0_46.

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Woloshyn, Jennifer, Lanre Oshinowo, and John Rosten. "Digester Design Using CFD." In Essential Readings in Light Metals, 350–55. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118647868.ch46.

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Hailu, Getu, Michal Varchola, and Peter Hlbocan. "CFD Analysis in Turbomachinery." In Design of Hydrodynamic Machines, 195–244. New York: CRC Press, 2022. http://dx.doi.org/10.1201/9781003007142-9.

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Guellouz, Mohamed Sadok, Kaouther Ghachem, Abdelmajid Jemni, and Maher Ben Chiekh. "CFD Aided Design: Case Studies." In Energy and Exergy for Sustainable and Clean Environment, Volume 2, 449–68. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8274-2_30.

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Brenner, G. "CFD in Process Engineering." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 351–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-70805-6_27.

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Pender, G., H. P. Morvan, N. G. Wright, and D. A. Ervine. "CFD for Environmental Design and Management." In Computational Fluid Dynamics, 487–509. Chichester, UK: John Wiley & Sons, Ltd, 2005. http://dx.doi.org/10.1002/0470015195.ch18.

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Petridis, M., B. Knight, and D. Edwards. "A Design for Reliable CFD Software." In Reliability and Robustness of Engineering Software II, 3–17. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3026-4_1.

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Fischer, Dietmar. "Ventilation Duct Design by CFD-Technology." In Automotive Simulation ’91, 168–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84586-4_15.

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Gan, Guohui. "CFD Simulation for Sustainable Building Design." In Design and Management of Sustainable Built Environments, 253–77. London: Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-4781-7_13.

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Conference papers on the topic "CFD design"

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Maisonneuve, J.-J., F. Dauce, and B. Alessandrini. "Towards Ship Optimal Design Involving CFD." In CFD 2003: CFD Technology In Ship Hydrodynamics. RINA, 2003. http://dx.doi.org/10.3940/rina.cfd.2003.5.

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Hall, W. B. "CAD, CAM, CFD and stereolithography in switchgear design." In IEE Colloquium on Design Technology of T&D Plant. IEE, 1998. http://dx.doi.org/10.1049/ic:19980452.

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Dreyer, J. J. "Blade Shaping For off-Design Performance: Cavitation and Efficiency In Two-Dimensional Cascades." In CFD 2005- CFD Technology in Ship Hydrodynamics. RINA, 2005. http://dx.doi.org/10.3940/rina.cfd.2005.3.

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Krijger, Jan Willem, and Dimitris Chalkias. "CFD Driven Drillship Design." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54119.

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Drillships have specific features which make ship resistance and propulsion characteristics difficult to predict with simple empirical methods. In this paper, RANSE CFD was used to optimize the hull and appendages of a drillship for speed or fuel consumption. An innovative thruster arrangement was initially designed for dynamic positioning and its performance in transit was verified with the use of CFD. Furthermore a special hydrodynamically shaped moonpool has been developed to eliminate moonpool sloshing during transit, further reducing resistance and increasing safety on board. CFD was also used to determine the propulsion efficiencies of the vessel. An innovative way to use an actuator disc approach was used to calculate effective wake factors. The various CFD calculations and the resulting design modifications are verified and confirmed with calm water resistance and self-propulsion tests. The bow shape modifications reduce the bare hull resistance by 12% and the headbox modifications reduce the added headbox resistance by 26% of the bare hull resistance. The Callirrhoe moonpool design reduces the added moonpool resistance by 37% compared to a conventional moonpool while at the same time eliminates sloshing in transit. The propulsion efficiency is above 60% when the aft thrusters are used, which is deemed high for such a vessel.
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Feng Baiwei, Hu Chunping, Liu Zuyuan, Zhan Chengsheng, and Chang Haichao. "Ship resistance performance optimization design based on CAD / CFD." In 2011 3rd International Conference on Advanced Computer Control (ICACC). IEEE, 2011. http://dx.doi.org/10.1109/icacc.2011.6016408.

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SNYDER, JAMES. "CFD needs in conceptual design." In Aircraft Design, Systems and Operations Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1990. http://dx.doi.org/10.2514/6.1990-3209.

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Stout, Phillip J., H. Q. Yang, Paul Dionne, Andy Leonard, Zhiqiang Tan, Andrzej J. Przekwas, and Anantha Krishnan. "CFD-ACE+: a CAD system for simulation and modeling of MEMS." In Design, Test, and Microfabrication of MEMS/MOEMS, edited by Bernard Courtois, Selden B. Crary, Wolfgang Ehrfeld, Hiroyuki Fujita, Jean Michel Karam, and Karen W. Markus. SPIE, 1999. http://dx.doi.org/10.1117/12.341217.

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Taggart, Steven, Christopher Doyle, and William Dempster. "CFD Based Relief Valve Design: Accuracy Requirements and CFD Capability." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-83579.

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Abstract Relief valves act as a controlled weak point in a pressurised system to protect against the dangers of an overpressure event. As such, their sound and reliable operation is crucial to the longevity of any pressurised system. The correct operation of a safety valve is established by adhering to the overpressure and blowdown requirements, i.e. the pressures above and below the set pressure which the valve will open and close and for many ASME BPVC regulated valves these pressures are of the order of 3–10% of set pressure. Since the disc forces are directly proportional to pressure, the accuracy requirements of Computational Fluid Dynamics (CFD) prediction techniques need to be much lower to allow CFD prediction to be a reliable tool for valve design and to guide the development of the device. In this paper, the capability of CFD modelling as a design tool for relief valves used in gas service is investigated by assessing the CFD prediction of disc lift-force curves. A full force-lift curve was produced with a maximum uncertainty of 2% in the low-lift region controlling the overpressure and 1.5% in the high-lift region which controls the blowdown and is of the same order as the experimental measurement. When using ASME BPVC Section VIII as an example, where the requirements for overpressure and blowdown are 10% and 7% respectively, the current CFD modelling capabilities can predict disc forces to an acceptable fraction of the Section VIII certification requirements. However, when comparing the CFD error to ASME BPVC Section I requirements which are much stricter at 3% and 4% for overpressure and blowdown, the use of CFD is more challenging with the CFD uncertainty of the same order as the design requirements.
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MCCLINTON, CHARLES, ROBERT BITTNER, and PRADEEP KAMATH. "CFD support of NASP design." In 2nd International Aerospace Planes Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1990. http://dx.doi.org/10.2514/6.1990-5249.

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Wark, Christopher. "Natural Ventilation Design Using CFD." In ASME 2007 Energy Sustainability Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/es2007-36199.

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In an effort to make buildings healthier and more energy efficient, architects are increasingly incorporating natural ventilation into their design strategies in order to take advantage of free, available wind power. The extent to which natural ventilation can replace forced ventilation in a given building depends on the local climate and specific site utilization. The ASHRAE Standards 55 and 62.1 that cover natural ventilation establish minimal requirements for climate and building openings but also concede that the ultimate responsibility for proving the effectiveness of this technique lies with the design team and the specific requirements of local codes. But how does a design team prove that air is flowing according to plan without actually creating the structure and taking measurements? Only two possibilities exist — regard each room as a very large ratio conduit and apply conventional equations to those spaces, or do a 3-dimensional numerical analysis of the flow path. Numerical analysis, known as Computational Fluid Dynamics (CFD), is now being recognized as the only reliable way to predict natural airflow through a building and assure that adequate air quality and comfort is provided at all points of each room before construction begins. CFD computer programs allow designers to divide a volume into a large number of small regions and calculate the air and heat transfer between each region, minimizing the assumption-related errors that would otherwise occur. Minimizing computational error at the beginning of the design process reduces the risk of costly post-construction order changes that can occur as substandard air quality is discovered. CFD software can vary in its level of sophistication. While the most basic Navier-Stokes heat and mass transfer equations are essential and can be of great use, a proper natural ventilation analysis tool should include calculations for buoyancy, turbulent convection, and the ability to do open boundary modeling. Other features such as local solar loading and transient analysis are also desirable. A comprehensive CFD package can be particularly useful for modeling the complex airflow found in mixed-mode designs and identifying regions of stagnant air, high heat loss or gain, short-circuited airflow, and other conditions that inhibit good building performance and limit the potential for sustainability.
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Reports on the topic "CFD design"

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Misra, John Satprim. Considering value of information when using CFD in design. Office of Scientific and Technical Information (OSTI), January 2009. http://dx.doi.org/10.2172/972158.

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Apostolatos, A., R. Rossi, and C. Soriano. D7.2 Finalization of "deterministic" verification and validation tests. Scipedia, 2021. http://dx.doi.org/10.23967/exaqute.2021.2.006.

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This deliverable focus on the verification and validation of the solvers of Kratos Multiphysics which are used within ExaQUte. These solvers comprise standard body-fitted approaches and novel embedded approaches for the Computational Fluid Dynamics (CFD) simulations carried out within ExaQUte. Firstly, the standard body-fitted CFD solver is validated on a benchmark problem of high rise building - CAARC benchmark and subsequently the novel embedded CFD solver is verified against the solution of the body-fitted solver. Especially for the novel embedded approach, a workflow is presented on which the exact parameterized Computer-Aided Design (CAD) model is used in an efficient manner for the underlying CFD simulations. It includes: A note on the space-time methods Verification results for the body-fitted solver based on the CAARC benchmark Workflow consisting of importing an exact CAD model, tessellating it and performing embedded CFD on it Verification results for the embedded solver based on a high-rise building API definition and usage
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Mittal, Rajat. Design Tools for Zero Net Mass flux Devices: CFD Effort. Fort Belvoir, VA: Defense Technical Information Center, May 2005. http://dx.doi.org/10.21236/ada435338.

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Fernandez, Ruben, Hernando Lugo, and Georfe Dulikravich. Aerodynamic Shape Multi-Objective Optimization for SAE Aero Design Competition Aircraft. Florida International University, October 2021. http://dx.doi.org/10.25148/mmeurs.009778.

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The SAE Regular Class Aero Design Competition requires students to design a radio-controlled aircraft with limits to the aircraft power consumption, take-off distance, and wingspan, while maximizing the amount of payload it can carry. As a result, the aircraft should be designed subject to these simultaneous and contradicting objectives: 1) minimize the aerodynamic drag force, 2) minimize the aerodynamic pitching moment, and 3) maximize the aerodynamic lift force. In this study, we optimized the geometric design variables of a biplane configuration using 3D aerodynamic analysis using the ANSYS Fluent. Coefficients of lift, drag, and pitching moment were determined from the completed 3D CFD simulations. Extracted coefficients were used in modeFRONTIER multi-objective optimization software to find a set of non-dominated (Pareto-optimal or best trade-off) optimized 3D aircraft shapes from which the winner was selected based to the desired plane performance.
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Kim, Minho, and Junghwan Lim. A Study on the Optimum Design of Pre-Heater System by Using CFD Analysis and Taguchi Method. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0330.

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Dash, S. M., D. C. Kenzakowski, and C. Kannepalli. CFD Support for Jet Noise Reduction Concept Design and Evaluation for F/A 18 E/F Aircraft. Fort Belvoir, VA: Defense Technical Information Center, January 2003. http://dx.doi.org/10.21236/ada461788.

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Sitek, M., S. Lottes, and H. Ley. Three-Dimensional CFD Analysis of Construction Design Alternatives for an ERDC Coastal and Hydraulics Laboratory Flow Accelerator. Office of Scientific and Technical Information (OSTI), September 2020. http://dx.doi.org/10.2172/1888757.

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Kim, Seung Jun, Kelley Marie Verner, and Andrew William Larsen. Design Optimization of A generic Fissile Solution for Mo99 production using Electron Beam-based Neutron Generator using MCNP+CFD. Office of Scientific and Technical Information (OSTI), April 2020. http://dx.doi.org/10.2172/1616416.

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Allen, Luke, Joon Lim, Robert Haehnel, and Ian Detwiller. Rotor blade design framework for airfoil shape optimization with performance considerations. Engineer Research and Development Center (U.S.), June 2021. http://dx.doi.org/10.21079/11681/41037.

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A framework for optimizing rotor blade airfoil shape is presented. The framework uses two digital workflows created within the Galaxy Simulation Builder (GSB) software package. The first is a workflow enabling the automated creation of a surrogate model for predicting airfoil performance coefficients. An accurate surrogate model for the rapid generation of airfoil coefficient tables has been developed using linear interpolation techniques that is based on C81Gen and ARC2D CFD codes. The second workflow defines the rotor blade optimization problem using GSB and the Dakota numerical optimization library. The presented example uses a quasi-Newton optimization algorithm to optimize the tip region of the UH-60A main rotor blade with respect to vehicle performance. This is accomplished by morphing the blade tip airfoil shape for optimum power, subject to a constraint on the maximum pitch link load.
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Richard W. Johnson and R. R. Schultz. Bounding Estimate for the 'Hot' Channel Temperature and Preliminary Calculation of Mixing in the Lower Plenum for the NGNP Point Design Using CFD. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/911234.

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