Hi,

I am trying to simulate Multiphase CHT problem. In my case, there are two fluids, air and water. I want to simulate water side as a Multiphase Mixture Model. Heat is rejected from air to water so I should simulate water side with airside but i can't define air side's cell zone conditions as air material. I tried to define air as a secondary phase(with vapor) but the air has became transformable to vapor and from water. Then analysis diverged. How can i define air material without defining as a phase?(Air and water do not mix. They are separated by wall.)