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    Effect of Grooves on Cavitation Around the Body of Revolution

    Source: Journal of Fluids Engineering:;2010:;volume( 132 ):;issue: 001::page 11301
    Author:
    Yongjian Li
    ,
    Haosheng Chen
    ,
    Jiadao Wang
    ,
    Darong Chen
    DOI: 10.1115/1.4000648
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Cavitation occurs widely in hydraulic machines, water and underwater vehicles, and lots of other equipments operating with liquids. Much research has been carried out to find out the factors affecting the degree of cavitation for better control of this phenomenon. In this study, the effects of grooves distributed around the body of revolution on cavitation are investigated using experimental and numerical methods. The experimental results show that the position and shape of the cavity clouds are affected by the dimensions of the grooves. A numerical simulation using the finite volume method indicates that the grooves influence the pressure distribution in the whole flow field and induce significant pressure fluctuation. The minimum pressure in each groove occurs on the top of the groove’s “windward” edge and decreases as the groove width is increased. Comparing the experimental and numerical results, it is found that cavitation is closely related to the local pressure of the fluid. Multiple grooves around the body of revolution induce pressure fluctuation. The groove width affects the amplitude and interval of the fluctuation and consequently influences the distribution of cavitation.
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      Effect of Grooves on Cavitation Around the Body of Revolution

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    http://yetl.yabesh.ir/yetl1/handle/yetl/143549
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    contributor authorYongjian Li
    contributor authorHaosheng Chen
    contributor authorJiadao Wang
    contributor authorDarong Chen
    date accessioned2017-05-09T00:38:21Z
    date available2017-05-09T00:38:21Z
    date copyrightJanuary, 2010
    date issued2010
    identifier issn0098-2202
    identifier otherJFEGA4-27406#011301_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/143549
    description abstractCavitation occurs widely in hydraulic machines, water and underwater vehicles, and lots of other equipments operating with liquids. Much research has been carried out to find out the factors affecting the degree of cavitation for better control of this phenomenon. In this study, the effects of grooves distributed around the body of revolution on cavitation are investigated using experimental and numerical methods. The experimental results show that the position and shape of the cavity clouds are affected by the dimensions of the grooves. A numerical simulation using the finite volume method indicates that the grooves influence the pressure distribution in the whole flow field and induce significant pressure fluctuation. The minimum pressure in each groove occurs on the top of the groove’s “windward” edge and decreases as the groove width is increased. Comparing the experimental and numerical results, it is found that cavitation is closely related to the local pressure of the fluid. Multiple grooves around the body of revolution induce pressure fluctuation. The groove width affects the amplitude and interval of the fluctuation and consequently influences the distribution of cavitation.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleEffect of Grooves on Cavitation Around the Body of Revolution
    typeJournal Paper
    journal volume132
    journal issue1
    journal titleJournal of Fluids Engineering
    identifier doi10.1115/1.4000648
    journal fristpage11301
    identifier eissn1528-901X
    treeJournal of Fluids Engineering:;2010:;volume( 132 ):;issue: 001
    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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