Towards time-averaged CFD modelling of circulating fluidized beds

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

    6 Citations (Scopus)

    Abstract

    In case of large CFBs, steady state CFD simulation can be an attractive alternative for the time-consuming transient simulations. In the paper, the features of equation closure of a steady state model are evaluated on basis of a transient 3D simulation. The computational results are analysed to determine the averaged flow properties and the main fluctuating components and their correlations. The main terms to be modelled for the steady state approach are, according to this analysis, the average gas-particle drag force and the Reynolds stresses arising from velocity fluctuations. Suggestions for approaches for steady state equation closure in case of industrial CFB applications are discussed.
    Original languageEnglish
    Title of host publicationProceedings of the 9th International Conference on Circulating Fluidized Beds, CFB-9
    EditorsJoachim Werther
    Place of PublicationHamburg
    Pages259-264
    Publication statusPublished - 2008
    MoE publication typeA4 Article in a conference publication
    Event9th International Conference on Circulating Fluidized Beds, CFB9 - Hamburg, Germany
    Duration: 13 May 200816 May 2008

    Conference

    Conference9th International Conference on Circulating Fluidized Beds, CFB9
    Abbreviated titleCFB9
    Country/TerritoryGermany
    CityHamburg
    Period13/05/0816/05/08

    Keywords

    • CFD
    • Circulating fluidized bed
    • Time averaging

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