Synthetic turbulent inflow conditions based on a vortex method for large-eddy simulation

Sofiane Benhamadouche, Nicolas Jarrin, Yacine Addad, Dominique Laurence

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    34 Scopus citations

    Abstract

    The generation of 'synthetic turbulence' for 0inflow conditions in Large Eddy Simulation is investigated. The method is based on a 2D vortex method for the lateral components of the fluctuating velocity and a 1D Langevin equation for the streamwise velocity component, mimicking a Restress transport model. Channel flow at Rer= 395 and pipe flow at Reτ=360 are used to test the 'synthetic turbulence' alone in the 2D inlet plane, then LES computations are run with these inlet conditions. Finally, the method is applied to a backward facing step with and without heat transfer.

    Original languageBritish English
    Pages (from-to)50-57
    Number of pages8
    JournalProgress in Computational Fluid Dynamics
    Volume6
    Issue number1-3
    DOIs
    StatePublished - 2006

    Keywords

    • Channel
    • Inflow boundary conditions
    • Large-eddy simulation
    • Pipe and back-step flow
    • Synthetic turbulence

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