Banc expérimental d'analyse des phénomènes aérodynamiques générés par le dépassement de deux véhicules automobiles
Résumé
A test set up was developed at the Institut Aérotechnique de Saint-Cyr l'École to simulate and analyse the transient aerodynamic phenomena associated with vehicle overtaking. This set up is used in an automotive wind tunnel to study the transient interactions between two 1/5 scale vehicle models moving relative to each other at speeds ranging from 0 to 10 m.s-1. The design of the set up allows the study of the effect of lateral spacing and of cross-wind on the aerodynamic forces acting on each of the two models. The details of this facility and first results are presented in this paper.
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