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Velocity profile

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Old   April 16, 2014, 03:52
Default Velocity profile
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Hi everybody,

I'm trying to simulate parabolic velocity profile at inlet. I have search the web and could not find any solution to this problem.

Could you help me please?

Thanks in advance
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Old   April 16, 2014, 06:40
Default velocity profile
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Hi...
u have to write the following UDF for it... and interpret it.
the F_PROFILE is the macro for the velcoity profile and the equation infront of it is the profile.

#include "udf.h"
DEFINE_PROFILE(inlet_x_velocity, thread, nv)
{
float x[2]; /* this will hold the position
vector*/
float y;
face_t f;
begin_f_loop(f, thread)
{
F_CENTROID(x,f,thread);
y = x[1];
F_PROFILE(f, thread, nv) =20.*(1.- y*y/(.0745*.0745));
}
end_f_loop(f, thread)
}
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