Stationary spectrum of vorticity cascade in two-dimensional turbulence

Claudia Pasquero and Gregory Falkovich
Phys. Rev. E 65, 056305 – Published 8 May 2002
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Abstract

The logarithmic renormalization predicted by Kraichnan (1971) for the direct cascade of enstrophy in the inertial range of two-dimensional turbulence has been observed in a numerical simulation. A moderate resolution allows for a very long time integration that provides very good statistics. Deviations from Gaussianity in the vorticity probability distribution are observed.

  • Received 26 December 2001

DOI:https://doi.org/10.1103/PhysRevE.65.056305

©2002 American Physical Society

Authors & Affiliations

Claudia Pasquero

  • Istituto di Scienze dell’Atmosfera e del Clima, CNR, Corso Fiume 4, 10133 Torino, Italy

Gregory Falkovich

  • Department of Physics of Complex Systems, Weizmann Institute, 76100 Rehovot, Israel

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Vol. 65, Iss. 5 — May 2002

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