Experiments and Numerical Simulations on the Aerodynamics of the Ahmed Body

W.  Meile; G.  Brenn; A.  Reppenhagen; B.  Lechner; A.  Fuchs

Experiments and Numerical Simulations on the Aerodynamics of the Ahmed Body

Authors

W. Meile Institute of Fluid Mechanics and Heat Transfer (ISW), Graz University of Technology, Inffeldgasse 25/F, 8010 Graz, AUSTRIA
G. Brenn Institute of Fluid Mechanics and Heat Transfer (ISW), Graz University of Technology, Inffeldgasse 25/F, 8010 Graz, AUSTRIA
A. Reppenhagen The Virtual Vehicle Competence Center (ViF), Inffeldgasse 21a, 8010 Graz, AUSTRIA
B. Lechner The Virtual Vehicle Competence Center (ViF), Inffeldgasse 21a, 8010 Graz, AUSTRIA
A. Fuchs The Virtual Vehicle Competence Center (ViF), Inffeldgasse 21a, 8010 Graz, AUSTRIA

Keywords:

Ahmed body, vehicle aerodynamics, force measurement, comparison simulation/measurement results

Abstract

The aerodynamic behaviour of the Ahmed body is investigated experimentally and numerically. The experiments cover the two slant angles 25° and 35° and Reynolds numbers up to 2.784?106. The commercial CFD tool Fluent™ v6.3.26 is tested for its ability to reproduce the aerodynamic force coefficients of the body. The simulations are validated with the present experiments and experiments from literature. Fair agreement with data from literature is found for velocity profiles along the slant and in the wake of the body.

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Published

2021-01-18

How to Cite

Meile, W. ., Brenn, G. ., Reppenhagen, A. ., Lechner, B. ., & Fuchs, A. . (2021). Experiments and Numerical Simulations on the Aerodynamics of the Ahmed Body. CFD Letters, 3(1), 32–39. Retrieved from https://www.akademiabaru.com/submit/index.php/cfdl/article/view/3333