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    Full-Scale Measurement of Micropressure Waves in High-Speed Railway Tunnels

    Source: Journal of Fluids Engineering:;2019:;volume( 141 ):;issue: 003::page 34501
    Author:
    Liu, Feng
    ,
    Niu, Ji-qiang
    ,
    Zhang, Jie
    ,
    Li, Guo-xing
    DOI: 10.1115/1.4041111
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: We aim to perform a series of field measurements for high-speed railway tunnels in China to obtain the micropressure wave (MPW) at the tunnel exit and the transient pressures near the tunnel portals. The relationship between the MPW and the nose-entry wave and the effects of train speed and the tunnel exit hole on the MPW are analyzed. The results show that the MPW decreases with increasing distance from the tunnel exit, but increases rapidly with increasing train speeds. Additionally, holes in the hoods near the tunnel exit could decrease the MPW near the tunnel exit by 10–20%.
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      Full-Scale Measurement of Micropressure Waves in High-Speed Railway Tunnels

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4255720
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    contributor authorLiu, Feng
    contributor authorNiu, Ji-qiang
    contributor authorZhang, Jie
    contributor authorLi, Guo-xing
    date accessioned2019-03-17T09:50:57Z
    date available2019-03-17T09:50:57Z
    date copyright9/26/2018 12:00:00 AM
    date issued2019
    identifier issn0098-2202
    identifier otherfe_141_03_034501.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4255720
    description abstractWe aim to perform a series of field measurements for high-speed railway tunnels in China to obtain the micropressure wave (MPW) at the tunnel exit and the transient pressures near the tunnel portals. The relationship between the MPW and the nose-entry wave and the effects of train speed and the tunnel exit hole on the MPW are analyzed. The results show that the MPW decreases with increasing distance from the tunnel exit, but increases rapidly with increasing train speeds. Additionally, holes in the hoods near the tunnel exit could decrease the MPW near the tunnel exit by 10–20%.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleFull-Scale Measurement of Micropressure Waves in High-Speed Railway Tunnels
    typeJournal Paper
    journal volume141
    journal issue3
    journal titleJournal of Fluids Engineering
    identifier doi10.1115/1.4041111
    journal fristpage34501
    journal lastpage034501-7
    treeJournal of Fluids Engineering:;2019:;volume( 141 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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