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高速列车气动噪声的计算研究
Computational study on aerodynamic sound from high-speed trains

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孙振旭 1   王一伟 2   安亦然 1 *  
文摘 通过对高速列车气动噪声产生的关键部位进行简化抽象,对其产生的噪声进行了数值分析.该文着重讨论了两个主要的简化模型,即二维后台阶问题以及三维圆柱绕流问题.对后台阶问题进行数值模拟时采用了NLAS和 LES两种不同的方法,并同实验值进行了比较.对三维圆柱绕流问题则直接采用NLAS方法耦合FW-H声音传播方程进行了数值模拟.以此对高速列车气动噪声的机理进行了分析,并对适合于高速列车气动噪声计算的方法进行了选择
其他语种文摘 Key components of high-speed trains generating aerodynamic sound were simplified and abstracted, and numerical simulations on two simplified models were performed, with a two-dimensional backward step model and a flow around a three-dimensional cylinder model included. For the former two kinds of numerical approaches-NLAS and LES-have been utilized and the numerical results were compared with experimental results. For the latter only the NLAS approach coupled with FW-H sound propagation equation was used for simulations. Based on these simulations the mechanism of the generation of aerodynamic sound from high-speed trains has been analyzed and suitable numerical approaches for high-speed train aerodynamic sound calculations have also been studied
来源 水动力学研究与进展. A辑 ,2010,25(5):660-668 【核心库】
DOI 10.3969/j.issn.1000-4874.2010.05.012
关键词 气动噪声 ; 计算气动声学 ; 非线性声学求解器 ; 大涡模拟
地址

1. 北京大学工学院, 湍流与复杂系统研究国家重点实验室, 北京, 100871  

2. 中国科学院力学研究所, 北京, 100190

语种 中文
文献类型 研究性论文
ISSN 1000-4874
学科 铁路运输
基金 国家“十一五”科技支撑计划项目
文献收藏号 CSCD:3984227

参考文献 共 18 共1页

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引证文献 6 篇

1 武频 高速列车空气动力制动装置气动噪声的数值模拟 力学季刊,2012,33(4):558-564
CSCD被引 1 次

2 杨国伟 高速列车的关键力学问题 力学进展,2015,45(1):217-460
CSCD被引 64 次

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