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UDF F_PROFILE problem

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Old   September 4, 2012, 04:35
Default UDF F_PROFILE problem
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Zhi-Gang Zhai
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Hello everyone!
These days I meet a fluent udf problem. I want to use the F_PROFILE to set the inlet velocity, but the result is not OK.
My case information is as follows. 2D , R-Z coordinate, the horizontal directoin is the Z axis, the vertical direction is the R axis. I use the k-e model. Calculate the energy equation.
I set the inlet axial velocity to -0.2m/s as and the radial velocity to 0m/s in the fluent GUI. The result is OK.
But I use the udf (DEFINE_PROFILE) to set the inlet velocity. The result is not OK. The velocity is very very low, almost stop.

DEFINE_PROFILE(axial_vel, t_face, i)
{
face_t f;
begin_f_loop(f, t_face)
{
F_PROFILE(f,t_face,i) = -0.2;
}
end_f_loop(f, t_face)
}


Pls look the following result figures. Who could tell me the probable reason. Thank you very much in advance.

1. set the inlet velocity to constant in the fluent GUI.
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2. use the udf to set the inlet velocity
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Old   September 5, 2012, 05:09
Default I find the some reason
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Hello, everyone.

The above problem, I use the 'interpreted' mode to run it, the result is OK.
But the 'compiled' mode is not OK, I don't know why?
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Old   September 5, 2012, 07:21
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So, the problem is with your compiler. You have not installed compiler correctly or it has not been linked to fluent.
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Old   September 5, 2012, 12:06
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Thanks to eng_s_sadeghi , I guess you are right, My OS is win7, but my c compiler is old one, which i copy from the winXP. So maybe it is not compatible. Thank you!
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