Browse Publications Technical Papers 2002-01-1275
2002-03-04

Reduction of Aeolian Noise from Roof Rack Crossbars Using Asymmetric Cross-Section Geometry 2002-01-1275

Roof racks have become a very popular feature of vehicles as the market demand for SUV's and RV's has increased drastically over the years. Aeolian tone from the cross bars however, could be a source of severe discomfort for the passengers. Both experimental and numerical steps are taken to enhance the understanding of the generation mechanism of the wind noise. A successful reduction of the noise is achieved by imposing asymmetry in the section geometry, which reduces the strength of Karman vortices shed downstream.

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