Mass diffusivity problem
 

Hello ,

However, I see the following warning that finally leads to stop my simulation:

Warning: Mass_Diffusivity: invalid (zero) diffusivity

Error: cx-xy-append-data: invalid number (y)
Error Object: 1.#qnan

Does anybody know how can I solve this annoying problem?

I tried several way to solve it. But still failed. :eek:

Thanks,

Megan.