Work

Vorticity Statistics in the Two-Dimensional Enstrophy Cascade

Year: 1999

Type: article

Abstract: 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 the corresponding structure function exponents are indistinguishable from zero. It is thus shown that there is no substantial small scale intermittency in the enstrophy cascade, in agreement with recent theoretical analyses.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.83.3418

Authors: Jérôme Paret, Marie-Caroline Jullien, Patrick Tabeling

Institutions: École Normale Supérieure - PSL, Laboratoire de Physique de l'Ecole Normale Supérieure

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1998295977

FWCI: 8.537

Cites: 20

Cited by: 90

Related to: 10