IMECH-IR  > 非线性力学国家重点实验室
圆柱绕流湍流结构及气动噪声大涡模拟
Alternative Title中国航天空气动力技术研究院;中国科学院力学研究所;
郭力; 张星; 何国威
Source Publication北京力学会第20届学术年会论文集
2014
Conference Name北京力学会第20届学术年会
Conference Date2014-01-12
Conference Place中国北京
Abstract采用Lighthill的声学比拟理论研究了雷诺数为3900时圆柱绕流产生的远场噪声。声源区采用大涡模拟方法计算得到不可压缩流场。计算得到了圆柱绕流的湍流结构与远场噪声频率谱,噪声频谱满足-5/3律。升力偶极子产生的噪声频率是阻力偶极子噪声频率的两倍。升力偶极子具有明显的主导频率,阻力偶极子频率谱主导频率不明显。
Keyword圆柱绕流 气动噪声 大涡模拟 非结构网格 Curle声比拟
DepartmentLNM湍流
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/52150
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
郭力,张星,何国威. 圆柱绕流湍流结构及气动噪声大涡模拟[C],2014.
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