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Poiseuille boundary condition

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Old   May 18, 2010, 04:38
Default Poiseuille boundary condition
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Hello,

I want to model flow in a 3D tube, but i want to define a parabolic (Poiseuille) velocity profile at the inlet. Can somebody help me?

The profile i want to apply is shown in figure (one of them).
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Old   May 18, 2010, 04:44
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Sorry, this is the image
Attached Images
File Type: jpg velocity profile.jpg (30.1 KB, 10 views)
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Old   May 18, 2010, 07:47
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I have no idea what the blob in your image means.

Simply write a CEL function which describes your boundary velocity as a function of x, y and z and use it as the velocity component in a velocity inlet boundary. You do this either using analytic functions or 1D or 3D interpolation functions.
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