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Old   June 30, 2011, 03:21
Default DEFINE_PROFILE help!!
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Marlom Ramos
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Hi!

A
I need that a DEFINE_PROFILE have the array value. How I do this?

For example: my array is :

real A[]={1,2,3,3,2,1}

and this I need that be my profile of velocity.


Help me please.!!
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Old   June 30, 2011, 12:44
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Micael Boulet
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Your DEFINE_PROFILE need to define velocity for a single face of a control volume. You should compute the value for each face using a loop. Check the UDF manual about DEFINE_PROFILE, there is example.
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Old   June 30, 2011, 14:17
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Marlom Ramos
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Quote:
Originally Posted by Micael View Post
Your DEFINE_PROFILE need to define velocity for a single face of a control volume. You should compute the value for each face using a loop. Check the UDF manual about DEFINE_PROFILE, there is example.
Thanks for your reply.

---------------------------------------------------

#include "udf.h"

DEFINE_PROFILE(y_velocity,thread,index)
{
real x[ND_ND];
real y;
face_t f;
real A[]={1,2,3,4,5};
begin_f_loop(f,thread)

{
F_CENTROID(x,f,thread);
F_PROFILE(f,thread,index)=A;

}
end_f_loop(f,thread)

}
---------------------------------------------------

This Correct? If the response is NOT. Any idea how to do?

NOTE: the mesh of the boundary have 5 face, by I use A of dimension 5.

Thanks you
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Old   July 5, 2011, 17:19
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Micael Boulet
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No, it won't works. Also, F_CENTROID really does nothing.

F_PROFILE should be given a single scalar value, not an array like your code try to do. If there is 5 faces on your boundary, then the loop should loops 5 times.

It is likely that the loop loops in an ordered way on the boundary, going from one extremity to the other. So this is likely to works, but it is a bit weird and I would recommand. Anyway, that could help you to understand.

Code:
 
#include "udf.h"
 
DEFINE_PROFILE(y_velocity,thread,index)
{
  face_t f;
  real A[]={1,2,3,4,5};
  int i = 0; 
 
  begin_f_loop(f,thread)
    {
      F_PROFILE(f,thread,index)=A[i];
      i++;
    }
  end_f_loop(f,thread) 
 
}
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