[QUOTE=KRAM36;451898]I don't see where you explained anything? Try me, I'm not afraid to learn.
QUOTE]
Wanting to learn is good! As B2000 pointed out we are discussing fluid flow which brings us to Navier-Stokes. Many years ago I had the pleasure of learning fluid dynamics and aerodynamics which just wouldn't be the same without the good old Navier-Stokes equations. The material isn't completely transparent, so I've included this wiki link to get you started. You'll want to brush up on tensors to get the full impact. Here's the link:
Navier
Now don't say I haven't tried to explain anything to you.