Joppich, Wolfgang

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Joppich, Wolfgang

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    PublicationAccess status: Open Access ,
    The influence of forcing schemes on the diffusion properties in pseudopotential-based Lattice Boltzmann models for multicomponent flows
    (2017)
    Küllmer, Knut
    ;
    Krämer, Andreas
    ;
    Joppich, Wolfgang 
    ;
    Reith, Dirk
    ;
    Foysi, Holger 
    The talk presents the influence of the choice of forcing schemes in pseudopotential-based LBM methods for multi-phase flows (e.g. Shan & Doolen (1995) or He & Doolen (1998)) on the diffusion coefficient, obtained via Chapman-Enskog analysis. The critical value of G is obtained und known relations used in the literature are subsequently derived based on this theory (e.g. Huan et al. (2007)). The often observed shift at tau=1 for the critical value of G can be directly derived. Simulation show excellent agreement between the diffusion coefficient and Fick’s law for various values of G.
    Source Type:Other
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