Research on Aerodynamic Noise of Base Styling Characteristics of Car Rearview Cover

Author:

Chen Xin1,Zhou Jun Long1

Affiliation:

1. Jilin University

Abstract

The 3-D digital models are established for two kinds of base styling of rearview cover. The compare analysis using Fluent model is based on the acoustic theory of computation. The results show that the average sound pressure level of up-raised rearview cover model is about 5 dB lower than that down-raised rearview cover model, and in all of the frequency range were apparently different. At the same time, the vortex of down-raised happened at the back location, which is more closer to the passenger’s ear, and affect the car interior noise. The results of analysis will conduct the design of rearview styling effectively.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference7 articles.

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2. Fan Jang, Peng Huang. Fluent Advanced Application and Case Analysis [M] . Beijing: Tsinghua University Press, 2008. 13-14.

3. Lighthill M J.On Sound Generated Aerodynamically: Part I: General Theory[C].Proceedings of the Royal Society of London,1952,Series A(211): 564-587.

4. Lighthill M J.On Sound Generated Aerodynamically: Part II: Turbulence as a Source of Sound[C].Proceedings of the Royal Society of London,1954,Series A(222): 1-32.

5. Bo Yang, Li Min Fu. Mesh Generation Strategies of The External Flow Field Around a Sedan and The Numerical Simulation Research [J] . Transactions of the Chinese society for agricultural machinery, 2007, 38(4): 8-11.

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