[CFD27]

Hello all,
I have a problem in defining diffusivity. I want to define two different diffusion coefficients in two different cell zones. For this I use the following UDF:

DEFINE_DIFFUSIVITY(diffusion, c, t, i)
{
	Domain* d;
	Thread * tc1, * tc2;

	d = Get_Domain(1);
	
	tc1 = Lookup_Thread(d, 8);
	tc2 = Lookup_Thread(d, 9);


	if (t == tc1)
	{
		diffusivity = 1e-7;
	}
	else if (t == tc2)
	{
		diffusivity = 1e-5;
	}
	return diffusivity;
	
}

The UDF compiles without any problems. However, you can see in the post that the diffusion coefficients are not inserted correctly. Does anyone have an idea what this can be due to?
Many thanks in advance.
Many greetings
Joe