Providing 0 mass fraction in vaccum condition
I am trying to model flow of mixture of air and water vapor where vapor is pulled out into a vaccum domain
I want to provide an initial condition where mass fraction of vapor and air in the domain is 0 because the domain is in vaccum condition intially.
Fluent does not allow me to do this as sum of mas fractions of vapor and air in the domain should be 1. Is there any way i could assign this vaccum condition initially?