Aerodynamic noise analysis and control for mini-van car side view mirror

WANG Yi-ping; GU Zheng-qi; YANG Xue; LI Wei-ping; YUAN Zhi-qun

Volume 24 Issue 7

Jul. 2009

Turn off MathJax

Article Contents

Article Navigation > Journal of Aerospace Power > 2009 > 24(7): 1577-1583

WANG Yi-ping, GU Zheng-qi, YANG Xue, LI Wei-ping, YUAN Zhi-qun. Aerodynamic noise analysis and control for mini-van car side view mirror[J]. Journal of Aerospace Power, 2009, 24(7): 1577-1583.

Citation:

WANG Yi-ping, GU Zheng-qi, YANG Xue, LI Wei-ping, YUAN Zhi-qun. Aerodynamic noise analysis and control for mini-van car side view mirror[J]. Journal of Aerospace Power, 2009, 24(7): 1577-1583.

WANG Yi-ping, GU Zheng-qi, YANG Xue, LI Wei-ping, YUAN Zhi-qun. Aerodynamic noise analysis and control for mini-van car side view mirror[J]. Journal of Aerospace Power, 2009, 24(7): 1577-1583.

Citation:

WANG Yi-ping, GU Zheng-qi, YANG Xue, LI Wei-ping, YUAN Zhi-qun. Aerodynamic noise analysis and control for mini-van car side view mirror[J]. Journal of Aerospace Power, 2009, 24(7): 1577-1583.

PDF( 1141 KB)

Aerodynamic noise analysis and control for mini-van car side view mirror

1.
State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University, Changsha 410082, China
2.
Optoelectronic Technology Laboratory, Wuhan Ordnance Noncommissioned Officers School, Wuhan 430075, China

Received Date: 2008-07-12
Rev Recd Date: 2009-03-19
Publish Date: 2009-07-28

Abstract

Abstract

The transient exterior flow field of a mini-van was computed by large eddy simulation(LES),and then the noise characteristic was predicted using FW-H acoustic model based on Lighthil-Curle acoustic analogy theory.The local shape of the mirror was modified to reduce the aerodynamic noise.Finally a real vehicle road test was implemented,with the test velocities from 60 km/h to 120 km/h.The result shows that the vehicle noise has been noticeably reduced,or even down to 1.2 dB,by modifying the mirror shape.
- computational fluid dynamics(CFD),
- large eddy simulation(LES),
- aerodynamic noise,
- acoustic analogy