| Identification and suppression of noise sources around high speed trains | |
Sun ZX(孙振旭); Guo DL(郭迪龙); Yao SB(姚拴宝); Yang GW(杨国伟) ; Li MG; Sun, ZX (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beisihuanxi Rd, Beijing 100190, Peoples R China.
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| Source Publication | ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
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| 2013-03 | |
| Volume | 7Issue:1Pages:131-143 |
| ISSN | 1994-2060 |
| Abstract | Aerodynamic noise would become a significant limiting factor as the running speed of high speed trains increases, and should be taken into consideration during the design of high speed trains. In the present work, the Nonlinear Acoustics Solver (NLAS) has been adopted to investigate the aerodynamic noise of high speed trains. The region around the streamlined head of the leading car and the trailing car, the bogie region, the upstream zone and the wake zone are discussed and the distribution characteristics of aerodynamic noise sources around a high speed train is exhibited. The acoustic characteristics of the streamlined head could be contaminated due to the unreasonable arrangement of cab windows or cowcatchers. As a result, different designs of cab windows and cowcatchers are investigated in this paper and advice on low noise design is given. Based on the above analysis, a new design of the streamlined head is proposed. Numerical results reveal that the noise level of the new streamline has been greatly suppressed. The analysis would aid in identification of noise sources around high speed trains and design of high speed trains with low noise. |
| Keyword | Aerodynamic Noise Nlas High Speed Trains Low Noise Design |
| Subject Area | 流动噪声与控制 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000315403200010 |
| Funding Organization | National Science and Technology Pillar Program [2009BAG12A03]; National Key Basic Research and Development Program (973 program) [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/311007/47109 |
| Collection | 流固耦合系统力学重点实验室 高温气体动力学国家重点实验室 |
| Corresponding Author | Sun, ZX (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beisihuanxi Rd, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Sun ZX,Guo DL,Yao SB,et al. Identification and suppression of noise sources around high speed trains[J]. ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,2013,7,1,:131-143. |
| APA | Sun ZX,Guo DL,Yao SB,Yang GW,Li MG,&Sun, ZX .(2013).Identification and suppression of noise sources around high speed trains.ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS,7(1),131-143. |
| MLA | Sun ZX,et al."Identification and suppression of noise sources around high speed trains".ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS 7.1(2013):131-143. |
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