How to compute gas absorption in USRPMT?
 

Hi, I am a newbie of CFX. Now I am trying to compute gas absorption using PARTICLE TRANSPORT MODEL under CFX4.3. As for the most important part, the gas absorption, someone told me to solve it using USRPMT, but I stop there. The example provided in USRPMT is only about evaporation, I don't know how to add mass transfer of gas absorption. Anyone would help me to edit the USRPMT and related command language to overcome the problem?

The more detailed, the better. Thanks a lot.