The main difficulty in solving the equations arises from the elliptic behavior. That is the reason why some formulations involve a pseudo-compressibility of the fluid. Another possibility to investigate incompressible flows numerically is given by solving the compressible Navier-Stokes equations for a very low Mach number, where compressibility effects are negligible. This method is presented for the example of the wake of an axisymmetric bluff body with a blunt base. Then, we will see what features of the Hamiltonian picture persist into the dissipative regime.
Biological significance is attached to the existence of stable, large-amplitude periodic orbits.
Refreshments will be served beforehand in Math 501. Most people take their eyesight for granted, thus have trouble empathizing with the visually impaired or blind student. The goal of my talk is only to frustrate the audience. To open your eyes to visually impaired education. Perhaps a few suggestions will be tossed around as well.