It can be simulated to a degree within Cinema4D, but to get a far more realistic result, you’re going to need RealFlow or some very, very complex particle effect algorithms. I can’t recall exactly where I saw the tutorial, but I believe that it was at http://www.mograph.net, however there was a way to use metaballs and the advanced renderer in conjunction with Pyrocluster and displacement maps. I also seem to recall that each frame was about a 3 hour render on a dual Xeon 3.6 GHz with a lot of RAM.
Good luck with it,
Michael Munkittrick
Gainesville, Florida USA