Zeger Knaepen wrote:
> I need a fluid dynamics simulation system.
> [...]
> Is there anyone who would be willing to help me?

I, too, thought about implementing something like that for POV-Ray 
(simply because we already have several nice particle/mass-spring 
systems, but no real fluid dynamics). Here's why I haven't started yet:

- Real Life (as always) and other ongoing projects
- Fluid dynamics are pretty hard math (as you already mentioned)
- Speed would propably be a main issue, so the whole thing would
   end as a separate C/C++ program (don't like that idea) or as
   a patch for POV-Ray. While I really want to learn how to patch
   POV, I have frozen that project to POV 4, which will come with
   a totally rewritten source code.

There's a 2D fluid dynamics solver somewhere on the web, it's source 
code can be obtained for a $10 fee IIRC (I'm afraid I don't have the URL 
handy ATM, but I can send it to you in about two weeks). That's probably 
how I would have started.
But there are a lot of free ressources on the topic, too, as you may 
have also noticed. During my short research, I found interesting stuff 
on Wikipedia and, of course, on MathWorld (mathworld.wolfram.com).


HTH,
Florian

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