Consider a stationary body within the flow of some fluid. I want to calculate pressure on the surface of the body. From the Navier Stokes (incompressible, stationary, no volume forces) equations, you would get something like:
dp/dx=-rho(u du/dx+v du/dy+w du/dz)+eta(d²u/dx²+d²u/dy²+d²u/dz²)...
That's right, unfortunately. Thanks for the typing, anyway. And thanks for the links. I'll take it home on the weekend and try to figure it out myself. I'm bad at maths, though.