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Guidelines for CFD Simulations of Ground Vehicle Aerodynamics
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 31, 2006 by SAE International in United States
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The CFD tools in aerodynamic design process have been commonly used in aerospace industry in last three decades. Although there are many CFD software algorithms developed for aerodynamic applications, the nature of a complex, three-dimensional geometry in incompressible highly separated, viscous flow made computational simulation of ground vehicle aerodynamics more difficult than aerospace applications. However, recent developments in computational hardware and software industry enabled many new engineering applications on computational environment. Traditional production process has largely influenced by computational design, analysis, manufacturing and visualization. Different aspects of linking advanced computational tools and aerodynamic vehicle design challenges are discussed in the present work. Key technologies like parallel computation, turbulence modeling and CFD/wind tunnel compatibility issues are presented. These state-of-the-art computational methodologies are applied to an aerodynamic simulation of a heavy ground vehicle problem, and the simulation procedure is presented as an example case.
CitationBayraktar, I. and Bayraktar, T., "Guidelines for CFD Simulations of Ground Vehicle Aerodynamics," SAE Technical Paper 2006-01-3544, 2006, https://doi.org/10.4271/2006-01-3544.
- Bayraktar, I., Baysal, O., Bayraktar, T., 2004, “Computational Parametric Study on External Aerodynamics of Heavy Trucks”, Lecture Notes in Applied and Computational Mechanics, vol. 19, pp. 485-501, Springer, ISBN 3-540-22088-7.
- Bayraktar, I., Landman, D. and Baysal, O., 2002, “Experimental and Computational Investigation of Ahmed Body for Ground Vehicle Aerodynamics”, SAE Transactions: Journal of Commercial Vehicles, Vol. 110, Section 2, pp. 613-626.
- Baysal, O., and Bayraktar, I., 2001, “Unsteady Wake Behind a Bluff Body in Ground Proximity”, FEDSM2001-18208, ASME Fluids Engineering Division Summer Meeting, New Orleans, LA.
- Baysal, O., and Bayraktar, I., 2000, “Computational Simulations for the External Aerodynamics of Heavy Trucks” SAE Paper 2000-01-3501, International Truck and Bus Meeting& Exposition, Portland, OR.
- Han, T., 1989, “Computational Analysis of Three Dimensional Turbulent Flow Around a Bluff Body in Ground Proximity,” AIAA Journal, 27, No. 9, pp.1213-1219.
- Hucho, W. H., 1998, “Aerodynamics of Road Vehicles”, SAE Publishing, Warrendale, PA.
- Bradley, R., 2000, “Technology Roadmap for the 21st Century Truck Program, A Government-Industry Research Partnership,” DOE Technical Report 21CT-001.
- Karypis, G, Kumar, V, A, 1997, “Coarse-Grain Parallel Formulation of Multilevel k-way Graph Partitioning Algorithm”, Proceedings of the Eighth SIAM Conference on Parallel Processing for Scientific Computing, PPSC 1997, March 14-17, 1997, Minneapolis, Minnesota.
- Berger, M. and Bokhari, S., 1987, “A partitioning strategy for nonuniform problems on multiprocessors.” IEEE Trans. Computers, C-36 pp. 570-580.
- http://www-unix.mcs.anl.gov/mpi/mpich, 2006.
- http://www.netlib.org/pvm3/, 2006
- Chien, K.Y., 1982, “Predictions of Channel and Boundary-Layer Flows with a Low Reynolds Number Turbulence Model”, AIAA Journal, 20, 1, Jan. 1982, pp. 33-38.
- Yakhot V., and Orszag S. A., 1986, “Renormalization Group Analysis of Turbulence,” Journal of Scientific Computing, 1, pp. 3-51.
- Menter, F.R.. “Two-equation eddy-viscosity turbulence models for engineering applications”. AIAA-Journal., 32(8), 1994.
- Wilcox, D.C., 1986, “Multiscale model for turbulent flows”, AIAA 24th Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics.
- Yang, Z., Schenkel, M., 2004, “Assessment of Closed-Wall Wind Tunel Blockage Using CFD”, SAE 2004-01-0672, SAE 2004 World Congress & Exhibition, Detroit, MI.
- CFX-5 Solver and Solver Manager, 1999, AEA Technologies, Pittsburgh, PA.
- Bayraktar, I., et. al., 2005, “An Assessment of Drag Reduction Devices for Heavy Trucks Using Design of Experiments and Computational Fluid Dynamics”, Heavy Vehicle Drag Reduction ∼ Overviews, Multiple Trailer-Mounted Devices; Tires, Splash and Spray and Emissions; Full Scale Assessments, SP-1985, pp. 53-64,.