Ansys Employee

The phase thread stuff is here  (scroll up a bit).

I can't comment on the undocumented macros. However, you may want to check the way C counts as real uvel = cell->V[1]   may be looking at the vvel! C count 0, 1, 2 etc so directions are x=0, y=1 and z=2.  


The Eulerian multiphase model is for more highly packed particles/bubbles/droplets. DPM is good to about 10-14% volume fraction. The latter is computationally cheaper, and works in a different way.