[Michaeladam]

Hi. I have a model where the breakage constant Kb is like,

for interior cells
Kb = v^2 * A;

for cells adjacent to wall
Kb = V^3/5 *B;

I am not sure how to code this in fluent UDF. I think I have to give some conditions to the thread to select cells adjacent to wall, but I am not sure how.

Your help is very much appreciated

Thanks,
Michael.,

[sbaffini]

More or less:

thread_loop_c(t,d)
{
begin_c_loop_int(c,t)
{
c_face_loop(c, t, nf)
{

f = C_FACE(c,t,nf);
tf = C_FACE_THREAD(c,t,nf);
c1 = F_C1(f,tf);
if (c1!=-1) /*f(tf) is interior*/
{
}
else/*f(tf) is on a boundary*/
{
}
}
}
}