Set value of cell to face.
 

Hello, my problem is that i need to assign to faces a values of nearest cells. I need to have on faces a value of Strain Rate to compute good values of Strain Rate gradient. Without this I have 0 on walls and gets wrong value of gradient. I know I can use Adjacent Cell Index (F C0, F C1) but i dont know how exactly I should do this. Thanks for help.

DEFINE_ADJUST(AT_BEGIN,domain)
{
cell_t c;
Thread *t;
face_t f;

thread_loop_c(t,domain)
{
begin_c_loop_all(c,t)
{
C_UDSI(c,t,1)=C_STRAIN_RATE_MAG(c,t);
}
end_c_loop_all(c,t)
}