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Old   November 5, 2008, 09:38
Default UDF temperature variation
  #1
Alex E-H
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hi. i am attempting to simulate a sinusoidally varying temperature velocity inlet and the following is my udf:

#include "udf.h"

DEFINE_PROFILE(unsteady_temp,thread,index) { face_t f; real T; real t = CURRENT_TIME;

begin_f_loop(f,thread) /* loops over all faces in the thread passed in the macro argument */ { F_PROFILE(f,thread,index) = 10.0 *sin(t*(3.14159/720) /* here stands the profile function as a function of time */ } end_f_loop(f,thread) }

When interpreting in Fluent I am getting the message:

Error: U:\4th_yr\FYP\2nd\Unsteady\unsteady_temperature.c: line 12: parse error.

Can anybody help me with this please?

Alex
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Old   November 5, 2008, 10:03
Default Re: UDF temperature variation
  #2
Alex E-H
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sorry i have modified i think this should work but still doesnt:

#include "udf.h" DEFINE_PROFILE(unsteady_temperature, thread, position) { face_t f; real t = CURRENT_TIME;

begin_f_loop(f, thread) { F_PROFILE(f, thread, position) = 10.*sin((3.14159/720)*t) /* here stands the profile function as a function of time */ } end_f_loop(f, thread) }

parse error on line 10?

Alex
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Old   November 5, 2008, 10:18
Default Re: UDF temperature variation
  #3
Alex E-H
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please do not worry to reply to this i have figured it out

alex
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