writing a dat file at each time step
 

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

Re: writing a dat file at each time step
 

See autosave in the user's manual.

Re: writing a dat file at each time step
 

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

Re: writing a dat file at each time step
 

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); }

Re: writing a dat file at each time step
 

hi thank you EVAN&SHEN i think i'll get it by trying what you people suggested bye w'll meet again