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    Effect of Shaft Diameter on the Hydrodynamic Torque of Butterfly Valve Disk

    Source: Journal of Fluids Engineering:;2020:;volume( 142 ):;issue: 011::page 0111202-1
    Author:
    Lin, Zhe
    ,
    Yin, Dapeng
    ,
    Tao, Junyu
    ,
    Li, Yi
    ,
    Sun, Jin
    ,
    Zhu, Zuchao
    DOI: 10.1115/1.4047795
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: In this study, computational fluid dynamics (cfd) software and detached eddy simulation turbulence model were used to simulate butterfly valves with different designs. The effects of shaft diameters on the value and the fluctuation of valve disk torque were studied, and the physical reason was discussed. The simulation results were verified by comparing with the experimental data. The findings revealed that with the closing of the valve, the hydraulic torque of the valve disk first increases and then decreases. Meanwhile, the torque decreases gradually with the increase of the shaft diameter. The variation of torque is caused by the change of pressure on both sides of the valve disk. The result also indicates that the fluctuation of torque is induced by the flow separation phenomenon occurs on the valve disk. The fluctuation is significant for the valve opening from 20% to 60%. The strength of the torque fluctuation is greater for the smaller shaft diameter. This study provides a theoretical basis for the design and optimization of butterfly valves.
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      Effect of Shaft Diameter on the Hydrodynamic Torque of Butterfly Valve Disk

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4274623
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    • Journal of Fluids Engineering

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    contributor authorLin, Zhe
    contributor authorYin, Dapeng
    contributor authorTao, Junyu
    contributor authorLi, Yi
    contributor authorSun, Jin
    contributor authorZhu, Zuchao
    date accessioned2022-02-04T21:58:12Z
    date available2022-02-04T21:58:12Z
    date copyright8/7/2020 12:00:00 AM
    date issued2020
    identifier issn0098-2202
    identifier otherfe_142_10_101213.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4274623
    description abstractIn this study, computational fluid dynamics (cfd) software and detached eddy simulation turbulence model were used to simulate butterfly valves with different designs. The effects of shaft diameters on the value and the fluctuation of valve disk torque were studied, and the physical reason was discussed. The simulation results were verified by comparing with the experimental data. The findings revealed that with the closing of the valve, the hydraulic torque of the valve disk first increases and then decreases. Meanwhile, the torque decreases gradually with the increase of the shaft diameter. The variation of torque is caused by the change of pressure on both sides of the valve disk. The result also indicates that the fluctuation of torque is induced by the flow separation phenomenon occurs on the valve disk. The fluctuation is significant for the valve opening from 20% to 60%. The strength of the torque fluctuation is greater for the smaller shaft diameter. This study provides a theoretical basis for the design and optimization of butterfly valves.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleEffect of Shaft Diameter on the Hydrodynamic Torque of Butterfly Valve Disk
    typeJournal Paper
    journal volume142
    journal issue11
    journal titleJournal of Fluids Engineering
    identifier doi10.1115/1.4047795
    journal fristpage0111202-1
    journal lastpage0111202-13
    page13
    treeJournal of Fluids Engineering:;2020:;volume( 142 ):;issue: 011
    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
    yabeshDSpacePersian