multiphase euler model (fluid-gas)

Jan

hey,

I want to simulate the evaporation of a fluid in a tube. I want to use the euler model (and maybe the mixture model).

With this model I have to define the diameter of the secundary phase (in my case the vapor phase). What is a good value for this? Will the diameter you set in, change during the simulation, with this I mean will Fluent see this value as an initial guess?

thanks Jan