Heat flux intensification by vortical flow localization in rotating convection

R.P.J. Kunnen, H.J.H. Clercx, B.J. Geurts

    Research output: Contribution to journalArticleAcademicpeer-review

    63 Citations (Scopus)
    65 Downloads (Pure)


    The effect of rotation on turbulent convective flow between parallel plates has been assessed with direct numerical simulations. With increasing rotation-rate an interesting transition is observed in the vertical-velocity skewness. This transition indicates a localization of motion directed away from the wall and correlates well with changes observed in the heat flux, as well as in the thermal and viscous boundary layer thicknesses. The formation of localized intense vortical structures provides for intensified vertical heat transport through Ekman pumping. At higher rotation-rates this is counteracted by the inhibition of vertical motion by rotation as expressed in the geostrophic thermal-wind balance.
    Original languageEnglish
    Article number056306
    Number of pages4
    JournalPhysical review E: Statistical, nonlinear, and soft matter physics
    Issue number5
    Publication statusPublished - 21 Nov 2006


    • Convection
    • Numerical analysis
    • EWI-9018
    • confined flow
    • Flow simulation
    • METIS-238744
    • IR-63904
    • Boundary layers
    • vortices


    Dive into the research topics of 'Heat flux intensification by vortical flow localization in rotating convection'. Together they form a unique fingerprint.

    Cite this