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How to set UDF For tophat velocity profile

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Old   June 11, 2017, 07:51
Default How to set UDF For tophat velocity profile
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hi gays , i you can just help me to define the UDF for the top hat velocity profile for fluent simulation the expression of the velocity profile is on the pic below :



the welocity is W and R is the radious of the jet (3D jet)


and i wanna know if m gonna need to change somthing coz this jet is in cylindrical coordinates and my volume of contrôle is gonna be in cartisienn coordinates
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