Pictures of the vorticity of 2D Navier-Stokes equations

turbulent vorticity

The same with a different visualization

Computational data

Snapshopts st $ t=0.0, 1.2, 2.4, 4.0$.

See our paper " A computer-assisted analysis of the two dimensional Navier-Stokes equations, Springer Lecture Notes in Mathematics, vol. 1540 (1993), pp. 309--318.

The same situation with Reynolds number 100. Animation GIF file 737 KB