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heat flux UDF

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Old   December 11, 2012, 17:34
Default heat flux UDF
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KAKI
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pleas help me i want UDF of heat flux, Q=f(z)=1-(z/0.002)*(z/0.002)
exemple in the link:
http://www4.0zz0.com/2012/12/11/21/311406276.jpg
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Old   December 12, 2012, 06:48
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Code:
#include "udf.h"
     
/* profile for heat flux*/
DEFINE_PROFILE(heatflux_profile, t, i)
{

  real x[ND_ND];   /* this will hold the position vector */
  face_t f;
     
  begin_f_loop(f, t)
  {
    F_CENTROID(x, f,t);
    F_PROFILE(f, t, i) =1.-(x[2]/0.002)*(x[2]/0.002);
  }
  end_f_loop(f, t)
}
You could easily change this code:
help me

If needed edit the formula or translate your geometry to have the base aligned with z=0 (from the picture I see your geometry is centered in Z);
also take care if you need positive or negative Q and if needed change the formula.

Daniele
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Old   December 12, 2012, 12:52
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Thank you very much my brother, can you give me your email address to communicate
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Old   December 13, 2012, 10:47
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post your questions here, so also somebody else can help you.
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