DENDP
 

Hi I am using dendp userfile . In my problem density varies with respect to pressure. i have mentioned expression for the variable DEN. how to represent DENDP. Is there any constant value for DENDP . Thanks in advance.

Re: DENDP
 

Given your relationship between density and pressure, DENDP is d(DEN)/dp at constant temperature. For example, DENDP=1.0/(R*T) for an ideal gas. You have to supply this yourself, STAR can't guess it for you.