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UDF for the boundary condition

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Old   July 12, 2001, 13:19
Default UDF for the boundary condition
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Sridhar
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Dear friends,

How can we write a User defined function for the boundary condition specifying that the vertical component of velocity is zero and the temperature is T_infinity, i.e 293K in my problem. I would be very thankful if anyone can clearly give me the C-programme for writing the UDF.

Thanks.

sridhar.
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Old   July 12, 2001, 20:42
Default Re: UDF for the boundary condition
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Greg Perkins
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Use a profile function - some examples are in the udf manual
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Old   July 12, 2001, 20:43
Default Re: UDF for the boundary condition
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Greg Perkins
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actually do you need a udf for this??
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Old   July 13, 2001, 19:18
Default Re: UDF for the boundary condition
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Sridhar
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Hi Greg, thanks for your responce. Do you think is there is any other way to represent the boundary conditions which I am intrested in applying?? if so please help me. Actually I am working on "bouyancy driven flow over flat vertical plate", If you want clear description of the problem, I appreciate you very much if you could please refer to the messege which I posted on June 25th with the title " natural convection flow over flat vertical plate". actually I am trying to set the above boundary conditions to the boundary which is located opposite to the vertical plate. I tried applying pressure inlet conditions to it, but I am not getting the velocity boundary layer at the wall.

I sincerly request if Anyone who is familiar with this topic can please help me. Thanks
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