Heat and mass transport in geostrophic horizontal convection with surface wind stress

T. Sohail, C. A. Vreugdenhil, B. Gayen, A. Mc C. Hogg

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    Direct Numerical Simulations are conducted to investigate heat and mass transport of flow with buoyancy forcing and surface wind stress. We use a re-entrant channel model with thermal and mechanical forcing similar to the Southern Ocean, with increasing surface wind stress. The model fully characterises convection and turbulence in the fluid. The presence of convection appears to significantly enhance the buoyancy-driven overturning, resulting in an overturning cell which dominates the flow field compared with a relatively shallow and weak wind-driven cell. The vertical heat transport also indicates that the majority of vertical advective heat transport occurs in the convective zone, with strong upwelling of heat in this region. These results indicate that the presence of convection significantly enhances the impact of buoyancy forcing in driving mass and heat transport.

    Original languageEnglish
    Title of host publicationProceedings of the 21st Australasian Fluid Mechanics Conference, AFMC 2018
    EditorsTimothy C.W. Lau, Richard M. Kelso
    PublisherAustralasian Fluid Mechanics Society
    ISBN (Electronic)9780646597843
    Publication statusPublished - 2018
    Event21st Australasian Fluid Mechanics Conference, AFMC 2018 - Adelaide, Australia
    Duration: 10 Dec 201813 Dec 2018

    Publication series

    NameProceedings of the 21st Australasian Fluid Mechanics Conference, AFMC 2018

    Conference

    Conference21st Australasian Fluid Mechanics Conference, AFMC 2018
    Country/TerritoryAustralia
    CityAdelaide
    Period10/12/1813/12/18

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