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Old   July 7, 2004, 16:57
Default User Defined Boundary Conditions
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I have been trying to set User defined Boundary conditions for a test case consisting incompresible, pulsatile flow. can anybody tell me in detail how should I do this. The velocity profile is sinusoidal.
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Old   July 7, 2004, 17:51
Default Re: User Defined Boundary Conditions
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It should look like this


{ cell_t c;

face_t f;

real x[ND_ND],u;




F_PROFILE(f,thread,nv)= sinusoidal function;




After Interpretting the UDF , you will see it in the boundary condition panel drop down menu. Select the name of the function ( sinusoidal_profile ) from the drop down when you select the boundary condition for the velocity at the bounday.
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Old   July 8, 2004, 00:34
Default Re: User Defined Boundary Conditions
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Hi ajay,

Thanks for the help. It worked. And I am able to get along with it.

thanks again, -ravi.
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