Numerical Results from Truncated Navier-Stokes Equations

Franceschini described numerical methods for determining orbits, return maps, structure of attractors, etc. ecc. In one case by slightly varying appropriate parameters he found, very close together, a torus, a pseudo-periodic orbit of period 29 and a strange attractor. The numerical procedures were more-or-less standard, involving Newton’s method and iteration; the results were exciting.