[p.1]

Hi, I have to get the weighted average of the cells values on a surface that I create in Fluent in post-processing. How can I get it with a UDF?

Without the weighted average my UDF is:

#include "udf.h"
#define uinf 1.75
#define d 6
DEFINE_ADJUST(dudy, domain)
{
Thread *t;
cell_t c;

thread_loop_c(t, domain)
{
begin_c_loop(c, t)
{
real v = C_V(c, t); /*v*/
real uy = C_U_G(c, t)[1]; /*du/dy*/
C_UDMI(c, t, 0) = -(v*uy)*(d/(uinf*uinf));
}
end_c_loop(c, t)
}
}

[AlexanderZ]

you can get it with fluent GUI
results-> reports -> surface integrals

[p.1]

Thank you.