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    Influence of Ambient Airflow on Free Surface Deformation and Flow Pattern Inside Liquid Bridge With Large Prandtl Number Fluid (Pr > 100) Under Gravity

    Source: Journal of Heat Transfer:;2017:;volume( 139 ):;issue: 012::page 122001
    Author:
    Yang, Shuo
    ,
    Liang, Ruquan
    ,
    Xiao, Song
    ,
    He, Jicheng
    ,
    Zhang, Shuo
    DOI: 10.1115/1.4036871
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The influence of airflow shear on the free surface deformation and the flow structure for large Prandtl number fluid (Pr = 111.67) has been analyzed numerically as the parallel airflow shear is induced into the surrounding of liquid bridge from the lower disk or the upper disk. Contrasted with former studies, an improved level set method is adopted to track any tiny deformation of free surface, where the area compensation is carried out to compensate the nonconservation of mass. Present results indicate that the airflow shear can excite flow cells in the isothermal liquid bridge. The airflow shear induced from the upper disk impulses the convex region of free interface as the airflow shear intensity is increased, which may exceed the breaking limit of liquid bridge. The free surface is transformed from the “S”-shape into the “M”-shape as the airflow shear is induced from the lower disk. For the nonisothermal liquid bridge, the flow cell is dominated by the thermocapillary convection at the hot corner if the airflow shear comes from the hot disk, and another reversed flow cell near the cold disk appears. While the shape of free surface depends on the competition between the thermocapillary force and the shear force when the airflow is induced from the cold disk.
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      Influence of Ambient Airflow on Free Surface Deformation and Flow Pattern Inside Liquid Bridge With Large Prandtl Number Fluid (Pr > 100) Under Gravity

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4234373
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    contributor authorYang, Shuo
    contributor authorLiang, Ruquan
    contributor authorXiao, Song
    contributor authorHe, Jicheng
    contributor authorZhang, Shuo
    date accessioned2017-11-25T07:17:03Z
    date available2017-11-25T07:17:03Z
    date copyright2017/27/6
    date issued2017
    identifier issn0022-1481
    identifier otherht_139_12_122001.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4234373
    description abstractThe influence of airflow shear on the free surface deformation and the flow structure for large Prandtl number fluid (Pr = 111.67) has been analyzed numerically as the parallel airflow shear is induced into the surrounding of liquid bridge from the lower disk or the upper disk. Contrasted with former studies, an improved level set method is adopted to track any tiny deformation of free surface, where the area compensation is carried out to compensate the nonconservation of mass. Present results indicate that the airflow shear can excite flow cells in the isothermal liquid bridge. The airflow shear induced from the upper disk impulses the convex region of free interface as the airflow shear intensity is increased, which may exceed the breaking limit of liquid bridge. The free surface is transformed from the “S”-shape into the “M”-shape as the airflow shear is induced from the lower disk. For the nonisothermal liquid bridge, the flow cell is dominated by the thermocapillary convection at the hot corner if the airflow shear comes from the hot disk, and another reversed flow cell near the cold disk appears. While the shape of free surface depends on the competition between the thermocapillary force and the shear force when the airflow is induced from the cold disk.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleInfluence of Ambient Airflow on Free Surface Deformation and Flow Pattern Inside Liquid Bridge With Large Prandtl Number Fluid (Pr > 100) Under Gravity
    typeJournal Paper
    journal volume139
    journal issue12
    journal titleJournal of Heat Transfer
    identifier doi10.1115/1.4036871
    journal fristpage122001
    journal lastpage122001-10
    treeJournal of Heat Transfer:;2017:;volume( 139 ):;issue: 012
    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