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3D UDF parabolic velocity profil

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Old   June 20, 2014, 04:12
Default 3D UDF parabolic velocity profil
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le steph grec
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I have worked out with 2d udf for parabolic velocity inlet.
Please help me how this code will change with 3d (Inlet in a circular face). I want to know how will be the equation considering 3rd dimmension.
as in 2d we have V(x)=Vmax- y^2/(disatnce from centre in y direction )^2 * Vmax.
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