[marye]

Hi all,

I'd like to change viscosity according to "ss"
Basically my UDF is :

#include"udf.h"


DEFINE_PROPERTY(cell_visco, cell, thread)

{
int iter = N_ITER;
int n=51;
real mu_lam;
real ss;
real vit = C_U(cell, thread);
ss=mu_lam*vit;

if (iter=1)
mu_lam=1;
else
for (iter=2; iter<n; iter++)
{
if (ss<0.00005)
mu_lam = 2.;
else
mu_lam=3.;

}
return mu_lam;
}

but I have a error that says : label "count2" not found (pc=12)


does anyone know what does it mean??

Anyway, I'd like to make 50 iterations, is N_ITER correct to control the number of iterations?

Thank you!!

[RaheelAhmed]

N_ITER can only be utilized in compiled UDFs.
https://www.sharcnet.ca/Software/Fluent6/html/udf/node105.htm