DNS of convective heat transfer in a rotating cylinder

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

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    1 Citation (Scopus)

    Abstract

    The effects of rotation on the convective heat transfer and flow structuring in a cylindrical volume of fluid is investigated with direct numerical simulation (DNS). A formulation of the discrete equations of motion in cylindrical coordinates is solved with finite-difference approximations. At constant Rayleigh (Ra; dimensionless temperature gradient) and Prandtl (Ro, the ratio of buoyancy and Coriolis forces, is varied between runs with 0.045 Ro ............ For Ro 1.2 we find the so~called large-scale circulation. At Ro 1.2 slender columnar vortical plumes are found. In a range of Ro heat transfer is increased by Ekman pumping in the vortical plumes. plumes.
    Original languageUndefined
    Title of host publicationProceedings of the Seventh International ERCOFTAC Workshop on Direct and Large-Eddy Simulation
    EditorsV. Armenio, Bernardus J. Geurts, J. Fröhlich
    Place of PublicationDordrecht
    PublisherSpringer
    Pages393-398
    Number of pages6
    ISBN (Print)978-90-481-3651-3
    DOIs
    Publication statusPublished - 2010
    Event7th ERCOFTAC Workshop on Direct and Large-Eddy Simulation VII, DLES 2008 - Trieste, Italy
    Duration: 8 Sep 200810 Sep 2008
    Conference number: 7

    Publication series

    NameERCOFTAC Series
    PublisherSpringer
    Volume13
    ISSN (Print)1382-4309

    Workshop

    Workshop7th ERCOFTAC Workshop on Direct and Large-Eddy Simulation VII, DLES 2008
    Abbreviated titleDLES
    CountryItaly
    CityTrieste
    Period8/09/0810/09/08

    Keywords

    • IR-75957
    • EWI-19310
    • METIS-276290

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