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    Use of the Inertial Dissipation Method for Calculating Turbulent Fluxes from Low-Level Airborne Measurements

    Source: Journal of Atmospheric and Oceanic Technology:;1991:;volume( 008 ):;issue: 001::page 78
    Author:
    Durand, Pierre
    ,
    De Sa, Leonardo
    ,
    Druilhet, Aimé
    ,
    Said, Frédérique
    DOI: 10.1175/1520-0426(1991)008<0078:UOTIDM>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Airborne measurements are currently used for computing turbulence fluxes of heat and momentum. The method generally used is the eddy correlation technique, which requires sophisticated equipments to calculate the absolute velocities of the air. We used the well-known inertial dissipation method to calculate the turbulent fluxes of heat and momentum from low-level airborne measurements This only requires knowledge of inertial subrange characteristics of velocity and scalars. The method was validated by comparing dissipation fluxes with those computed by the eddy correlation method. The agreement between the two is very good, particularly for heat fluxes. Last, it is shown how the turbulent kinetic energy dissipation rate can be easily calculated, using a single measurement (the attack angle by example), and therefore how turbulent fluxes can be simply calculated from low level airborne measurements.
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      Use of the Inertial Dissipation Method for Calculating Turbulent Fluxes from Low-Level Airborne Measurements

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4203844
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    contributor authorDurand, Pierre
    contributor authorDe Sa, Leonardo
    contributor authorDruilhet, Aimé
    contributor authorSaid, Frédérique
    date accessioned2017-06-09T16:11:19Z
    date available2017-06-09T16:11:19Z
    date copyright1991/02/01
    date issued1991
    identifier issn0739-0572
    identifier otherams-629.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4203844
    description abstractAirborne measurements are currently used for computing turbulence fluxes of heat and momentum. The method generally used is the eddy correlation technique, which requires sophisticated equipments to calculate the absolute velocities of the air. We used the well-known inertial dissipation method to calculate the turbulent fluxes of heat and momentum from low-level airborne measurements This only requires knowledge of inertial subrange characteristics of velocity and scalars. The method was validated by comparing dissipation fluxes with those computed by the eddy correlation method. The agreement between the two is very good, particularly for heat fluxes. Last, it is shown how the turbulent kinetic energy dissipation rate can be easily calculated, using a single measurement (the attack angle by example), and therefore how turbulent fluxes can be simply calculated from low level airborne measurements.
    publisherAmerican Meteorological Society
    titleUse of the Inertial Dissipation Method for Calculating Turbulent Fluxes from Low-Level Airborne Measurements
    typeJournal Paper
    journal volume8
    journal issue1
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/1520-0426(1991)008<0078:UOTIDM>2.0.CO;2
    journal fristpage78
    journal lastpage84
    treeJournal of Atmospheric and Oceanic Technology:;1991:;volume( 008 ):;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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