I'm trying to make a contour plot of the waterlevel after having used the VOF-model in 3D. The closest I can get is the isosurface at VOF=1, but I need to have numbers on at what height the surface is. Can anybody HELP me? / David

Try VOF=0.5.

You can store the isosurface as a shell and then list the coordinates of this shell, e.g.

cset news fluid
getc conc
cave cset
popt isos .5
cplo
pscr,,isos,vof_surface
cset news name vof_surface
vset news cset
vlis vset

After converting isosurfaces to shell you can even map contour plot of surface height on them. You'll just need to put approptiate coordinates into Post 4.