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    The Saturation of Fluid Turbulence in Breaking Laboratory Waves and Implications for Whitecaps

    Source: Journal of Physical Oceanography:;2016:;Volume( 046 ):;issue: 003::page 975
    Author:
    Deane, Grant B.
    ,
    Stokes, M. Dale
    ,
    Callaghan, Adrian H.
    DOI: 10.1175/JPO-D-14-0187.1
    Publisher: American Meteorological Society
    Abstract: easurements of energy dissipated in breaking laboratory waves, averaged over time and space and directly visualized with a bioluminescent technique, are presented. These data show that the energy dissipated in the crest of the breaking waves is constrained: average turbulence intensity within the crest saturates at around 0.5?1.2 W kg?1, whereas breaking crest volume scales with wave energy lost. These results are consistent with laboratory and field observations of the Hinze scale, which is the radius of the largest bubble entrained within a breaking crest that is stabilized against turbulent fragmentation. The Hinze scale depends on turbulence intensity but lies in the restricted range 0.7?1.7 mm over more than two orders of magnitude variation in underlying unbroken wave energy. The results have important implications for understanding the energetics of breaking waves in the field, the injection of turbulence into the upper ocean, and air?sea exchange processes in wind-driven seas.
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      The Saturation of Fluid Turbulence in Breaking Laboratory Waves and Implications for Whitecaps

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4226907
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    contributor authorDeane, Grant B.
    contributor authorStokes, M. Dale
    contributor authorCallaghan, Adrian H.
    date accessioned2017-06-09T17:21:06Z
    date available2017-06-09T17:21:06Z
    date copyright2016/03/01
    date issued2016
    identifier issn0022-3670
    identifier otherams-83658.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4226907
    description abstracteasurements of energy dissipated in breaking laboratory waves, averaged over time and space and directly visualized with a bioluminescent technique, are presented. These data show that the energy dissipated in the crest of the breaking waves is constrained: average turbulence intensity within the crest saturates at around 0.5?1.2 W kg?1, whereas breaking crest volume scales with wave energy lost. These results are consistent with laboratory and field observations of the Hinze scale, which is the radius of the largest bubble entrained within a breaking crest that is stabilized against turbulent fragmentation. The Hinze scale depends on turbulence intensity but lies in the restricted range 0.7?1.7 mm over more than two orders of magnitude variation in underlying unbroken wave energy. The results have important implications for understanding the energetics of breaking waves in the field, the injection of turbulence into the upper ocean, and air?sea exchange processes in wind-driven seas.
    publisherAmerican Meteorological Society
    titleThe Saturation of Fluid Turbulence in Breaking Laboratory Waves and Implications for Whitecaps
    typeJournal Paper
    journal volume46
    journal issue3
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/JPO-D-14-0187.1
    journal fristpage975
    journal lastpage992
    treeJournal of Physical Oceanography:;2016:;Volume( 046 ):;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
    yabeshDSpacePersian