UDF For Momentum Source
 

Hi Could You Please Help Me For: I Simulated A Tunnel Wich Have Several Fans. These Fans's Efficieincy are a Function of CO Concentration In Tunnel. I Want To Write A UDF For Momentum Sources (Fans). The Fuction is : Mx={[<9-C/9+C>]+[9+C/3C-9]}(119) My={[<9-C/9+C>]+[9+C/3C-9]}(-226) <> is a symbol of Absolute Fuction And [] is a function that exports integer digit.

Please Give Ur Commends. Thanks in Advance