UDF: DEFINE_PROFILE_Velocity Inlet for 2D Axisymmetric Flows with Swirl -- CFD Online Discussion Forums

May 16, 2017, 08:26

UDF: DEFINE_PROFILE_Velocity Inlet for 2D Axisymmetric Flows with Swirl

wei_fu

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Wei

Join Date: May 2017

Location: Germany

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Hello,

could somebody help me to specify the velocity inlet boundary conditions for a 2D axisymmetric flow with swirl.

My target is to set the velocity Inlet considering

r = 0 ~ 0.0425 m (radial coordinate set as variable)
u = 11 m/s (axial velocity set as const.)
v = 0 (radial velocity set as const.)
w = 8*r (swirl velocity set as variable)

many thanks in advance!

Wei

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_Description and Definition of the 2D Model.png (132.0 KB, 24 views)

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