[Roman1989]

Hello,

I would like to simulate a drying process in my 3D model, and I need to set the species mass fraction in the inlet to be the same as the outlet (Zone 11).

Here is my udf:

#include "udf.h"

int get_humidity_zone_ID = 11;
real Hum;

DEFINE_ADJUST(find_humidity,domain)
{
#if !RP_HOST
Thread *ft,*ct;
face_t f;
cell_t c;

ft = Lookup_Thread(domain,get_humidity_zone_ID);
ct = THREAD_T0(ft);

begin_f_loop(f,ft)
{
c = F_C0(f,ft);
Hum = C_YI(c,ct,0);

}
end_f_loop(f,ft)
#endif

}

DEFINE_PROFILE(inlet_humidity,t,eqn)
{
face_t f;

begin_f_loop(f,t)
{
F_PROFILE(f,t,eqn) = Hum;
}
end_f_loop(f,t)

}


But for some reason the species mass fraction of the inlet is always zero.

It would be a great help for me, if anyone has experience with such a problem and could give me an advice.

Thanks in advance!