| Numerical simulation of aerodynamic noise generated by high speed trains | |
Sun ZX(孙振旭) ; Song JJ(宋婧婧); An YR(安亦然); An, YR; Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.
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| Source Publication | ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
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| 2012-06-01 | |
| Volume | 6Issue:2Pages:173-185 |
| ISSN | 1994-2060 |
| Abstract | Aerodynamic noise becomes more and more significant and sometimes could be predominant as the running speed of high speed trains increases. As a result, aerodynamic noise has to be taken into consideration during the design of high speed trains. In present work, the research on aerodynamic noise of the high speed train with a speed of 300 km/h has been performed. The nonlinear acoustics solver (NLAS) approach is adopted to study the aerodynamic noise in the near field of the high speed train. With the use of an acoustic surface, the research on the aerodynamic noise in the far field has been carried out by solving the Ffowcs-Williams/Hawking (FW-H) equation. At first the method validation is performed through a two-dimensional backward step case, which shows excellent agreement with experimental results. The characteristics of the flow field dominate the generation of aerodynamic noise, therefore the flow field is firstly analyzed, including the head, the rear, and the inter-coach spacing of the train. By use of probes in specific regions on the surface of the train, the contribution of different parts of the train to the aerodynamic noise is discussed. Meanwhile, the far field feature of aerodynamic noise is also studied by placing probes in the far field. Based on the above analysis, the aerodynamic noise performance of the specific high speed train is assessed. |
| Keyword | High Speed Trains Aerodynamic Noise Nlas Fw-h Equation Acoustic Surface Shinkansen Sound |
| Subject Area | 流动噪声与控制 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000305206800002 |
| Funding Organization | The authors would like to thank Dr. Jie Zhang from Beijing Vision Strategy LTD for his great help. This work is supported by the National Science and Technology Pillar Program during the Eleventh Five-Year Plan Period (No.2009BAG12A01) and the National Key Basic Research and Development Program (973 program) (No.2011CB711101). |
| Department | LMFS流固耦合与数值计算(LHO) |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46639 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | An, YR; Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China. |
| Recommended Citation GB/T 7714 | Sun ZX,Song JJ,An YR,et al. Numerical simulation of aerodynamic noise generated by high speed trains[J]. ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,2012,6,2,:173-185. |
| APA | Sun ZX,Song JJ,An YR,An, YR,&Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China..(2012).Numerical simulation of aerodynamic noise generated by high speed trains.ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,6(2),173-185. |
| MLA | Sun ZX,et al."Numerical simulation of aerodynamic noise generated by high speed trains".ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS 6.2(2012):173-185. |
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