[jins9158]

Dear experts

I am korean CFD user
I am going to simulate about VAC(Ventilation Air Conditioning) using CFX program.
I made mixture's material which was consist of N2, O2, Ar, CO2, H2O
because I need to know mass fraction about CO2, H2O for result.

Now, there is one domain for fluid zone and I need to set several initial condition because they are different according to coordinate.
I want to divide 4 pats using CEL expression to set initial condition

For example
IF ( 0 [mm] < x < 2000[mm], 0 [mm] < z < 2000[mm], co2 mass fraction = 0.0018
IF ( 0 [mm] < x < 2000[mm], 0 [mm] < z < 2000[mm], H2O mass fraction = 0.0018

Could you give some ideas for me?
Thank you for reading my question