Random Flow Generation Technique for Large Eddy Simulations and Particle-Dynamics Modeling
А. В. СмирновDepartment of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506-6106Shunchen ShiDepartment of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506-6106İsmail ÇelikDepartment of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV 26506-6106
2001en
ABI
Аннотация
A random flow generation (RFG) technique is presented, which can be used for initial/inlet boundary generation in LES (Large-Eddy-Simulations) or particle tracking in LES/RANS (Reynolds-Averaged Navier-Stokes) computations of turbulent flows. The technique is based on previous methods of synthesizing divergence-free vector fields from a sample of Fourier harmonics and allows to generate non-homogeneous anisotropic flow field representing turbulent velocity fluctuations. It was validated on the cases of boundary layer and flat plate flows. Applications of the technique to LES and particle tracking are considered.
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