How to use C_R_G and C_P_G or C_R_RG and C_P_RG in fluent at the same time?
 

Hi, my friends,
in my udf, i have to use the density gradient and pressure gradient at the same time. But, it seems that in fluent, C_P_G or C_P_RG could not be used in the density based solver, and C_R_G or C_R_RG could not be used in the pressure based solve.

Do you have some solutions for these? My fluent version is 6.3:)