Question about making a variable function in proprities of domain ? ?
 

Dear all

i am using CFX .

i made a smoke concentration variable of (specific variable type) of units [kg/kg]

i want to make another variable , smoke Concentration ( volumetric variable type) , of Units [kg/m^3]
Function in the changing density of the domain ( air) according to the change of the tempreature of this domain ,

simply i want to make a variable, function in the mass of existing variable and the( density & mass) of the domain

thanks for your time and help.