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impulse disturbance to simulate rougness

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Old   September 17, 2014, 04:29
Default impulse disturbance to simulate rougness
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Desanga
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Hi foamers,

I'm studying boundary layer flow using dynamic LES model in openfoam. further I need to incorporate an artificial roughness element to study behavior of this flow. in order to do that i'm thinking about to introduce impulse disturbance which rotating with time (my surface is rotating) at the surface, instead of dynamic mesh. currently im running pisoFoam solver with homogeneous Simanrosky model. any idea of how to implement this in openfom?
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