Numerical simulation of aerodynamic noise generated by high speed trains

IMECH-IR > 流固耦合系统力学重点实验室

	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.
发表期刊	ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
	2012-06-01
卷号	6 期号:2 页码:173-185
ISSN	1994-2060
摘要	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.
关键词	High Speed Trains Aerodynamic Noise Nlas Fw-h Equation Acoustic Surface Shinkansen Sound
学科领域	流动噪声与控制
收录类别	SCI
语种	英语
WOS记录号	WOS:000305206800002
项目资助者	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).
课题组名称	LMFS流固耦合与数值计算(LHO)
论文分区	二类/Q2
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/46639
专题	流固耦合系统力学重点实验室
通讯作者	An, YR; Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.
推荐引用方式 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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