| CRH3型高速列车气动噪声数值模拟研究 | |
| Alternative Title | Numerical Simulation of Aerodynamic Noise Generated by CRH3 High Speed Trains |
孙振旭 ; 宋婧婧; 安亦然
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| Source Publication | 北京大学学报. 自然科学版
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| 2012-09-25 | |
| Volume | 48Issue:5Pages:701-711 |
| ISSN | 0479-8023 |
| Abstract | 采用非线性声学求解方法(NLAS)进行近场气动噪声研究,通过一个二维后台阶算例进行了方法验证,与实验数据符合良好。在噪声源周围建立噪声面,并利用FW-H方程进行远场噪声评估。对CRH3型高速列车在300 km/h速度下运行进行了气动噪声分析,着重考虑车体几何对气动噪声的影响。首先对高速列车在RANS计算下的统计结果进行分析,研究高速列车关键部位如头部、车厢连接处、尾部等的流场特征。进而通过在列车表面特征位置设置测点,研究车体不同部位对气动噪声产生的贡献。通过在远场设置噪声测点,分析了CRH3型高速列车的远场气动噪声特性,并对噪声水平进行了评估。 |
| Other Abstract | The nonlinear acoustics solver(NLAS) approach is adopted to study the aerodynamic noise in the near field of the CRH3 high speed train.The method validation is conducted through a two-dimensional backward step case,which shows excellent agreement with experimental results.With the help of acoustic surface around the noise sources,far field aerodynamic noise study is carried out by solving the Ffowcs-Williams/Hawking(FW-H) equation.The aerodynamic noise study on CRH3 high speed trains with a speed of 300 km/... |
| Keyword | 气动噪声 Nlas Fw-h方程 噪声面 |
| Subject Area | 流动噪声与控制 |
| URL | 查看原文 |
| Indexed By | CSCD |
| Language | 中文 |
| Funding Organization | 国家“十一五”支撑计划高速列车共性基础课题(2009BAG12A01); 国家重点基础研究发展计划(2011CB711101)资助 |
| CSCD ID | CSCD:4633076 |
| Department | LMFS流固耦合与数值计算(LHO) |
| Citation statistics |
Cited Times:14[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46496 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | 安亦然 |
| Recommended Citation GB/T 7714 | 孙振旭,宋婧婧,安亦然. CRH3型高速列车气动噪声数值模拟研究[J]. 北京大学学报. 自然科学版,2012,48,5,:701-711. |
| APA | 孙振旭,宋婧婧,&安亦然.(2012).CRH3型高速列车气动噪声数值模拟研究.北京大学学报. 自然科学版,48(5),701-711. |
| MLA | 孙振旭,et al."CRH3型高速列车气动噪声数值模拟研究".北京大学学报. 自然科学版 48.5(2012):701-711. |
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