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Old   January 7, 2010, 12:19
Default energy source problem
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nickeet
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Dear All

I am a beginner in UDF

I need to set a energy source in a solid (W/m3)

And the energy source is temperature dependent

I got this error message:

FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save cas/data under new name.
3. Exit programme and restart to continue.
4. Report error to your distributor.
Error object

My UDF is as follow


#include "udf.h"

DEFINE_SOURCE(energy_source, c, t, dS, eqn)

{
real temp;
real source;

temp = C_W(c,t);



if (temp<293 && temp>290)
source = 1000.;
else
source = 0.;
return source;
}


pls give me some direction and suggestion.

Thanks.
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Old   January 8, 2010, 04:36
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Max
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C_W(c,t) will return the z-velocity which does not make too much sense for a solid. Maybe C_T(c,t) is what you actually want to use.

cheers
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Old   January 10, 2010, 09:56
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nickeet
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Thank you, coglione

I will try it!!
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