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suitable boundary conditions

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Old   November 7, 2009, 05:28
Question suitable boundary conditions
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S M Khan
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i imported a mesh of multiple blocks, innermost block is having a fine mesh and enclosing a pleated airfoil in the FLUENT. block looks like a rectangle. boundary conditions are put as velocity inlet at the entrance, outflow at the exit , upside and downside of the block are also put as outflow condition with zero outflow takes place. i run it with a time step size of 0.01 and 50000 iterations. but there is no formation of vortex shedding near the airfoil. please let me know what conditions would be put to get vortex shedding near the airfoil.

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boundary conditions, fluent, vortex shedding

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