Reduction of Aeolian Noise From Roof Rack Crossbars Using Asymmetric Cross-Section Geometry

Document Number: 2002-01-1275

Date Published: March 2002

Author(s):
Myunghan Lee - Hyundai Motor Co.
Jeonghan Lee - Hyundai Motor Co.
Dae Hoon Kim - Hyundai Motor Co.

Abstract:
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.

File Size: 803K
Product Status: In Stock

See other papers presented at SAE 2002 World Congress & Exhibition, March 2002, Detroit, MI, USA, Session: Vehicle Aerodynamics: Computational Aerodynamics (Part B)

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