Experimental and Computational Investigation of Ahmed Body for Ground Vehicle Aerodynamics Old Dominion University

Format:

Conference/Event

Author/Creator:

Bayraktar, Ilhan, author.

Conference Name:

International Truck and Bus Meeting & Exposition (2001-11-12 : Chicago, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2001

Summary:

External aerodynamics remains one of the major concerns in designing a new generation road vehicle. In the present study, the external aerodynamics of an Ahmed body at a scale and Reynolds number, that are representative of a car or light truck at highway speeds, is explored. An experimental model test was compared with a computational model using various back angles. In addition, the experiment allowed lift and drag to be measured at yaw angles up to ±15 degrees. Reynolds number effect on drag and lift coefficients was studied and wind averaged drag coefficients were calculated. The numerical calculations used a Reynolds-averaged, unsteady Navier-Stokes formulation. Both experimental and computational results are presented for back angles of 0-, 12.5-, and 25-degrees, then compared with each other and the data available in the literature

Notes:

Vendor supplied data

Publisher Number:

2001-01-2742

Access Restriction:

Restricted for use by site license