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Experimental and Numerical Investigation of the DrivAer Model

[+] Author Affiliations
Angelina I. Heft, Thomas Indinger, Nikolaus A. Adams

Technische Universität München, Garching bei München, Germany

Paper No. FEDSM2012-72272, pp. 41-51; 11 pages
doi:10.1115/FEDSM2012-72272
From:
  • ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels
  • Volume 1: Symposia, Parts A and B
  • Rio Grande, Puerto Rico, USA, July 8–12, 2012
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4475-5
  • Copyright © 2012 by ASME

abstract

Automotive aerodynamic research often focuses on strongly simplified car models, such as the Ahmed body and the SAE model. Due to their high degree of abstraction, however, interference effects are often neglected which leads to an unrealistic representation of the flow field. Consequently, these results cannot be directly used for the aerodynamic optimization of production vehicles. On the other hand, aerodynamic investigations of real production vehicles are often limited due to the restricted availability of the geometric data. Therefore, a new realistic generic car model for aerodynamic research — the DrivAer body — is proposed. This paper focuses on the development of the model, summarizes first experimental results of the different configurations of the fastback geometry and compares them to numerical simulations performed using the open source software OpenFOAM®.

Copyright © 2012 by ASME

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