Volume 7, 1999Third International Workshop on Vortex Flows and Related Numerical Methods
|Page(s)||173 - 182|
|Published online||15 August 2002|
Modelling of stationary three-dimensional separated air flows around an Ahmed reference model
Renault S.A.; 1 Avenue du Golf, 78288 Guyancourt Cedex
2 Conservatoire National des Arts et Métiers, 15, rue Marat, 78210 Saint Cyr l'Ecole
When analysing the topology of turbulent flow systems for alternative vehicle configurations, conventional wind-tunnel tests may not be sufficient. Vehicle development teams investigating this kind of physical phenomenon are increasingly interested in numerical simulation, but reliable implementation of computational techniques in automotive aerodynamics requires validation to confirm that such methods are capable of accurately reproducing experimentally proven physical behaviour. We address this issue by comparing the results of experimental wind-tunnel tests with simulated values for aerodynamic drag coefficient and vortex wake flows at different angles of car rear window inclination, using an Ahmed (AHMED S.R.) reference model.
© EDP Sciences, ESAIM, 1999
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