Hi there,

I am trying to calculate with massfractions of the air with a user subroutine in fortran.

The problem is, how do I get the values for the temperature and the density OUT of cfx?

Then, I want to calculate som things and then I want to give back TO cfx the massfractions of the air for some species.

Therefore... thats the point right now. Please help.

Regards Mareike

You can do this with CEL expressions. Do you need FORTRAN for some specific logic?

Hi Cyclone. Thank you for your answer.

Yes, I need fortran! I have programmed about 30 lines which calculate the massfraction for a specific condition.

Is it possible to do this without CEL expressions? Just a linked code?

Hi Cyclone,

if you would solve this via the CEL expression, how would you do this? Maybe I can combine some things. Any idea? Many many thanks if you know an answer.

Hi there,

I have got a similar problem to solve. If anyone knows an answer... that would be great!

Greetz Olli