I want to set the wall boundary condition as Tw=Tadjacent+10. Following UDF not working(access violation error), would yoou tell me why? ----------------------------------------------------------- #include "udf.h"

DEFINE_PROFILE(face_temp_grad, thread, position) { face_t f; cell_t c; Thread *tf; int ID=3 ; Domain *d;

begin_f_loop(f,thread) {

tf=Lookup_Thread(d,ID); c=F_C0(f,tf); F_PROFILE(f,thread,position)=C_T(c,tf)+10.0;

/* c=F_C0(f,thread); F_PROFILE(f,thread,position)=C_T(c,thread)+10.0; */ } end_f_loop(f,thread) }

try this

#include "udf.h"

DEFINE_PROFILE (face_temp_grad, thread, position) {

face_t f; cell_t c; Thread *tf; int ID=3 ; Domain *d;

begin_f_loop(f,thread) {

tf=Lookup_Thread(d,ID);

c=F_C0(f,tf);

F_PROFILE(f,thread,position)=C_T(c,tf)+10.0;

end_f_loop (f,thread) }

}

What's the difference between my program and yours. Let me know, please...

did it work or not? i havent done any changess except removing the comment and puttng a closing brace and it worked for me. Thanks