| 汽车气动噪声数值计算分析 |
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| 引用本文： | 汪怡平,谷正气,李伟平,向宇,张洪涛. 汽车气动噪声数值计算分析[J]. 汽车工程, 2009, 31(4) |
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| 作者姓名： | 汪怡平 谷正气 李伟平 向宇 张洪涛 |
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| 作者单位： | 1. 湖南大学汽车车身先进设计制造国家重点实验室,长沙,410082
2. 广西工学院汽车工程系,柳州,545006 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，湖南省科技计划重大项目，教育部长江学者和创新团队发展计划 |
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| 摘 要： | 文中阐述了气动噪声数值分析的两个步骤,即采用大涡模拟(LES)计算汽车外部瞬态流场和采用FW-H声学模型预测其噪声特性.最后介绍了该数值仿真方法在汽车设计中的应用以及降低气动噪声的措施.
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| 关 键 词： | 汽车设计 气动噪声 大涡模拟 FW-H声学模型 |
A Numerical Analysis on Automotive Aerodynamic Noise |
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| Wang Yiping,Gu Zhengqi,Li Weiping,Xiang Yu,Zhang Hongtao. A Numerical Analysis on Automotive Aerodynamic Noise[J]. Automotive Engineering, 2009, 31(4) |
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| Authors: | Wang Yiping Gu Zhengqi Li Weiping Xiang Yu Zhang Hongtao |
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| Affiliation: | Wang Yiping1,Gu Zhengqi1,Li Weiping1,Xiang Yu2 & Zhang Hongtao21.Hunan University,State Key Laboratory of Advanced Design , Manufacturing for Vehicle Body,Changsha 410082,2.Department of Automotive Engineering,Guangxi University of Technology,Liuzhou 545006 |
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| Abstract: | In this paper,two steps of aerodynamic noise analysis are expounded,i.e.,the transient exterior flow field is calculated by large eddy simulation(LES) and then the noise characteristics are forecasted using FW-H acoustic model.Finally some application examples of numerical simulation in vehicle design are presented with the measures for reducing aerodynamic noise given. |
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| Keywords: | vehicle design aerodynamic noise LES FW-H acoustic model |
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