Vorticity Statistics in the Two-Dimensional Enstrophy Cascade
Vorticity Statistics in the Two-Dimensional Enstrophy Cascade
We report the first extensive experimental observation of the two-dimensional enstrophy cascade, along with the determination of the high order vorticity statistics. The energy spectra we obtain are remarkably close to the Kraichnan Batchelor expectation. The distributions of the vorticity increments, in the inertial range, deviate little from Gaussianity, and …