A QUASI-THREE-DIMENSIONAL COMPUTATIONAL PROCEDURE FOR PREDICTION OF TURBULENT FLOW THROUGH THE FRONT-END OF VEHICLES
This paper describes the computational technique used to predict flow over and through the front end of vehicles; this scope includes flow over the hood, around air dams, through condensers, radiators, fans, and in the engine compartment. The computational procedure employed is a finite-difference method for solving time-averaged equations for turbulent flow using the k-epsilon model. A two-dimensional program was modified to add variable-depth cells (in the direction of car width) so that some three-dimensional features could be included. A turbulence model was used which is applicable to rotational and irrotational areas of the flow field. The total system model was calibrated with wind-tunnel data, and various modifications to the vehicle configuration were studied. Results from the predictions were compared with wind-tunnel test data.
- Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
- International Congress and Exposition, Detroit, Michigan, February 25-March 1, 1985.
Warrendale, PA United States 15096
- Willoughby, D A
- Williams, J
- Carroll, G W
- Sun, R L
- Maxwell, T T
- Publication Date: 1985
- Features: Figures; References; Tables;
- Pagination: 9 p.
- TRT Terms: Aerodynamics; Finite differences; Flow; Forecasting; Mathematical models; Turbulence; Vehicle design; Wind tunnels
- Candidate Terms: Turbulent flow
- Subject Areas: Design; Safety and Human Factors;
- Accession Number: 00450782
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: SAE 850282, HS-038 950
- Files: HSL, USDOT
- Created Date: Dec 31 1985 12:00AM