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Random Flow Generation

The Random Flow Generation (RFG) procedure generates a random divergence-free vector field, which can also satisfy extra conditions of anisotropy and inhomogeneity. The procedure can be used to generate inflow and initial conditions for LES (large-eddy simulations), and to serve as a subgrid-turbulence model in applications of particle-laden flows. The method has also potential in applications involving acoustic and electromagnetic fields.


Images

[3D vector field]

[Vorticity field]

[Anisotropic length-scale]

[Anisotropic velocities]


Animations


RFG Links


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