IMECH-IR  > 流固耦合系统力学重点实验室
Study on the critical diameter of the subway tunnel based on the pressure variation
Sun ZX(孙振旭); Yang GW(杨国伟); Zhu L; Sun, ZX (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
Source PublicationSCIENCE CHINA-TECHNOLOGICAL SCIENCES
2014-10
Volume57Issue:10Pages:2037-2043
ISSN1674-7321
AbstractWhen the subway train operates at a speed higher than 100 km/h, the corresponding aerodynamic issue becomes severe. To meet the future requirement for the speedup of subway trains, a research on the critical diameters of the subway tunnel for trains operating at 120 and 140 km/h has been performed based on passengers' aural discomfort caused by rail tunnel pressure variation. A three-dimensional computational fluid dynamic approach has been adopted for analysis. Meanwhile, trains with different airtight indices are considered and the pressure variations inside and outside the trains are both under investigation. Based on the corresponding criteria for different airtight indices, critical tunnel diameters for trains running at different speeds have been determined. This study would aid in the tunnel section design for future high-speed subway trains.
KeywordTunnel Pressure Waves Airtight Index Aural Discomfort Blockage Ratio
Subject AreaEngineering ; Materials Science
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000343363100018
Funding OrganizationThis work was supported by the National Basic Research Program of China ("973" Project) (Grant No. 2011CB711100), and the National Natural Science Foundation of China (Grant No. 11302233). Computing Facility for Computational Mechanics Institute of Mechanics, Chinese Academy of Sciences is gratefully acknowledged.
DepartmentLMFS流固耦合与数值计算(LHO)
Classification二类/Q2
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49331
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 AuthorSun, ZX (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Sun ZX,Yang GW,Zhu L,et al. Study on the critical diameter of the subway tunnel based on the pressure variation[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2014,57(10):2037-2043.
APA Sun ZX,Yang GW,Zhu L,&Sun, ZX .(2014).Study on the critical diameter of the subway tunnel based on the pressure variation.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,57(10),2037-2043.
MLA Sun ZX,et al."Study on the critical diameter of the subway tunnel based on the pressure variation".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 57.10(2014):2037-2043.
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