Tech Papers

[55] Applying Complex Turbulent Cross-Correlation Function to an SEA Side Glass to Predict Interior Wind Noise

This paper presents new advances in predicting wind noise contribution to interior SPL in the framework of the Wind Noise German Working Group composed of Audi, Daimler, Porsche and VW.  In particular, a new approach was developed that allows to fully describe the wind noise source using CFD generated surface pressure distribution and its cross-correlation function and apply this source on an SEA side glass.  This new method removes the need to use a diffuse acoustic field or several plane waves with various incidence angle to approximate the correct acoustics source character to apply on the SEA side glass.  This new approach results are compared with results previously published which use more deterministic methods to represent the side glass and the interior of a vehicle.

2016 – ISNVH – International Styrian Noise, Vibration and Harshness Congress, Graz, Autria
Denis Blanchet (ESI Group, Germany)
Luca Alimonti (ESI US R&D)
Anton Golota (ESI Group, Germany)

 

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