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How to write UDF for change the boundary condition of velocity inlet to wall

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Old   February 14, 2024, 09:50
Exclamation How to write UDF for change the boundary condition of velocity inlet to wall
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Osvaldo Garcia Merino
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Hello everyone

I have a tube 3D with the face of inlet is divided in 2 faces because i need for the inicial of simualtion both faces be velocity inlet but after 10 seconds change the boundary contions for 1 face to be a wall no slip

Could you help me give me an idea of the macro I should use?
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Old   February 14, 2024, 15:55
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Quote:
Originally Posted by osvaldo_gar View Post
Hello everyone

I have a tube 3D with the face of inlet is divided in 2 faces because i need for the inicial of simualtion both faces be velocity inlet but after 10 seconds change the boundary contions for 1 face to be a wall no slip

Could you help me give me an idea of the macro I should use?
This doesn't need a UDF, you can do this manually if running the simulation using the GUI, or use the TUI commands to change the boundary type from velocity -inlet to a wall.
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