Correction of Wind Tunnel Data: a Numerical Analysis of the Different Contribution

Abstract

Authors: G. Lombardi, A. Tosini, E. Cardile, D. Zinelli

Keywords: wind tunnel correction, CFD validation, wall interference, automotive aerodynamics, Reynolds number

The experimental data corrections on automotive wind tunnel tests usually benefit of pre-test corrections methodology, which can break down working time. This methodology is based on the use of CFD simulations and yields a global correction term, sum of different contributions. It is interesting to analyze such contributions and their possible dependencies by the involved parameters. The car was split in body, wheels, underbody, radiators, rear wing and internal volumes.