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Old   October 8, 2004, 10:35
Default UDf..please help
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Hi how can i define vilocity according bellow: v=sinat v: vilocity t:time a :constant parameter i want udf program whit c code. please help me .i need your help.
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Old   October 8, 2004, 23:58
Default Re: UDf..please help
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Refer to the Fluent user Manual, they have given examples with the codes.

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Old   October 9, 2004, 00:01
Default Re: UDf..please help
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#include "udf.h" DEFINE_PROFILE(unsteady_velocity, thread, position) { face_t f; real a,t = CURRENT_TIME; a=10.0;/*change to your value*/ begin_f_loop(f, thread) { F_PROFILE(f, thread, position) = sin(a*t); } end_f_loop(f, thread) }
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