how to create interface mass transfer, henry's law
 

Dear all CFX users

I am working with 2 phase system (air and water) and I try to see the distribution of O2 in liquid phase. I have a problem about interface mass transfer. I have created 2 additional variables for the oxygen in water and gas. I have in this forum that I can use Henry's law between the 2 additional variables. I spent lot of time to this but I can't. I am quite new for CFX. If you know how to do it stem by step please kindly tell me step by step

Thanks in advance