Abstract
A square back Ahmed body is used to mimic a heavy vehicle, bus or truck, in order to derive control processes that yield a significant drag reduction. The first step is to analyse carefully the structures in the flow that have a strong impact on the drag forces. Then, active and passive controls using blowing jets or porous medium layers are presented and discussed. The results are analyzed showing the direct impact of the control on the flow behaviour.
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Acknowledgments
The simulations were run on PLAFRIM platform supported by IMB University of Bordeaux and INRIA Bordeaux - Sud Ouest.
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Bruneau, CH., Creusé, E., Depeyras, D., Gilliéron, P., Mortazavi, I. (2016). Analysis of the Active and Passive Drag Reduction Strategies Behind a Square Back Ground Vehicle. In: Dillmann, A., Orellano, A. (eds) The Aerodynamics of Heavy Vehicles III. ECI 2010. Lecture Notes in Applied and Computational Mechanics, vol 79. Springer, Cham. https://doi.org/10.1007/978-3-319-20122-1_23
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DOI: https://doi.org/10.1007/978-3-319-20122-1_23
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