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writing a dat file at each time step

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Old   September 27, 2005, 07:33
Default writing a dat file at each time step
  #1
ayapan
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hi i am simulating cross flow over cylinder for turb re 3900, i need to write u and v components in a particular plane of wake at every iteration with out stoping iterastion is it possible through udf??, comments plz by apn
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Old   September 27, 2005, 13:16
Default Re: writing a dat file at each time step
  #2
Evan Rosenbaum
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See autosave in the user's manual.
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Old   September 28, 2005, 06:54
Default Re: writing a dat file at each time step
  #3
ayapan
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hi in autosave it will save whole case and data or both but i need only in a particular plane that too only some interesting parameter. comments welcome

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Old   September 28, 2005, 23:42
Default Re: writing a dat file at each time step
  #4
top.shen
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hi: maybe you have to use the macro DEFINE_EXECUTE_AT_END(NAME). THE FOLLOEING IS A SAMPLE FOR U: (SPECIES MODEL WITHOUT REACTION,TO GET THE MASS(index 0) FRACTION)

DEFINE_EXECUTE_AT_END(EAE_WPD) {

Domain *d=Get_Domain(1);

Thread *t;

cell_t c;

real x[ND_ND];

FILE *f;

f=fopen("RESULTdata.txt","W");

if(f==0) printf("\n\ncan NOT open the pointdata file!");

/*LOOP ALL CELL,U HAVE TO CHANGE TO LOOP ON THE FACE YOU CARE ABOUT.*/

thread_loop_c(t,d)

{

begin_c_loop_all(c,t)

{

Cz=C_YI(c,t,0);

fprintf(f,"\t|mass fraction:%ft\n",Cz);

}end_c_loop_all(c,thread)

}

fclose(f); }

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Old   September 30, 2005, 02:07
Default Re: writing a dat file at each time step
  #5
ayapan
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hi thank you EVAN&SHEN i think i'll get it by trying what you people suggested bye w'll meet again

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