[Shaik Raheem]

Hello all,

i am doing a simulation on atmospheric water harvesting using adsorption phenomenon. working fluid is moist air. I have defined moist air as predefined system. I am giving vapor mass fraction(w) and using it at inlet to the porous domain. During adsorption, moisture is adsorbed and it is desorbed during the desorption process. when the desorption is occurring, fluid goes out from the domain with some vapor mass fraction(w_0). I want to give that w_0 as inlet in next timestep during desorption. I am not aware of doing this kind. when i am using if condition, it is showing "circular variable dependency detected."

please help me with this.