This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Viscous-Flow Simulation of an Open-Wheel Race Car
Annotation ability available
Sector:
Language:
English
Abstract
A numerical solution based on the Navier-Stokes equation, combined with unstructured grid mesh, was used to model an open wheel race car. The solution is based on a fast, matrix-free, implicit method, with relatively low storage requirements, resulting in solution times up to an order of magnitude smaller than other numerical solutions. The computations provide details on the flow field around the car and a complete pressure distribution on the vehicle's surface. The calculated results may be used as a supplementary tool for wind tunnel or road testing and can provide information, such as the underbody flow, which is difficult to evaluate experimentally. One of the primary advantages of such a viscous flow simulation is the ability to model wheel rotation and to detect regions of flow separation, particularly on the suction side of the front and rear wings.
Recommended Content
Authors
Citation
Katz, J., Luo, H., Mestreau, E., Baum, J. et al., "Viscous-Flow Simulation of an Open-Wheel Race Car," SAE Technical Paper 983041, 1998, https://doi.org/10.4271/983041.Also In
References
- Werner, F. Frik, S. Schulze, J. “Aerodynamic Optimization of the Opel Calibra ITC Racing Car Using Experiments and Computational Fluid Dynamics,” SAE 98-0040 Feb. 98 Detroit MI
- Axelsson, N. Ramnefors, M. Gustafsson, R. “Accuracy in Computational Aerodynamics Part 1: Stagnation Presure,” SAE 980037 Feb. 98 Detroit MI
- Perzon, S. Sjogren, T. Jonson, A. “Accuracy in Computational Aerodynamics Part 2: Base Pressure,” SAE 980038 Feb. 98 Detroit MI
- Katz J. Dykstra, L. “Application of Computational Methods to the Aerodynamic Development of a Prototype Race-Car,” SAE Paper 942498 , Proceedings of the 1994 Motor Sport Engineering Conf. 161 169 Dec. 5-8 1994 Detroit, MI
- Löhner, R. Morgan, K. Peraire, J. Vahdati, M. “Finite Element Flux-Corrected Transport (FEM-FCT) for the Euler and Navier-Stokes Equations,” Int. J. Num. Meth. Fluids 7 1093 1109 1987
- Baum, J.D. Löhner, R. “Numerical Simulation of Shock Interaction with a Modern Main Battlefield Tank,” AIAA-91-1666 1991
- Baum, J.D. Luo, H. Löhner, R. “Numerical Simulation of a Blast Inside a Boeing 747,” AIAA --93-3091 1993
- Baum, J.D. Luo, H. Löhner, R. “Numerical Simulation of Blast in the World Trade Center,” AIAA -95-0085 1995
- Löhner, R. Parikh, P. “Three-Dimensional Grid Generation by the Advancing Front Method,” Int. J. Num. Meth. Fluids 8 1135 1149 1988
- C.A.R.T. “Aerodynamic and Body Work Specifications,” Cart Rulebook 1996
- Luo, H. Baum, J. D. Löhner, R. “Edge-Based Finite Element Scheme for the Euler Equations,” AIAA J. 32 6 1183 1190 1994
- Löhner R. Baum, J. D. “Adaptive H-Refinement on 3-D Unstructured Grids for Transient Problems,” Int. J. Num. Meth. Fluids 14 1407 1419 1992
- Löhner, R. Parikh, P. Gumbert, C. “Some Algorithmic Problems of Plotting Codes for Unstructured Grids,” AIAA -89-1981-CP 1989