Statistical Analysis of Correlation Between Simulation and Measurement of Interior Wind Noise Available to Purchase

Aeroacoustic simulation with CFD (Computational Fluid Dynamics) generates large result datasets that need to be analyzed carefully to correlate with interior wind noise measurements. Recently, a new tool has been developed that simulates interior noise from exterior air flow by combining transient CFD for flow simulation and SEA (Statistical Energy Analysis) for vehicle structural acoustic response. Several interesting data reduction techniques have been employed to correlate dozens of separate passenger vehicle tests with the corresponding simulation results. This paper presents results of this correlation study, including statistical analysis of the resulting frequency domain comparison.