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Kelvin-Helmholtz Instability - A LES Model
Here ELMER was used to simulate the Kelvin-Helmholtz instability with Reynolds number ~ 10000.
The rational Large Eddy Simulation (LES) model with Smagorinsky subgrid scale terms was used to compute the time dependent solution of the filtered Navier-Stokes equations.
Here you can download an animation of the results mpeg: [~850 KB] The video shows the vorticity of the filtered velocity field.