face areas UDF
 

Hello all,

I am running a 2D simulation and I want to integrate a variable across a boundary. This entails getting the flux value, for example amps/m^2 and multiplying it by the face area in m^2. In the manual it gives the face areas macro returning a vector that is the normal to the face. I would like the actual value of the face area (or for 2D the distance between the two nodes of the face) in m^2, or whatever length unit it uses.

Any help, as always, it truly appreciated.