VORTICAL SCALES FOR 2-DIMENSIONAL AND 3-DIMENSIONAL TURBULENCE

Authors
NOVIKOV EA
Citation
Ea. Novikov, VORTICAL SCALES FOR 2-DIMENSIONAL AND 3-DIMENSIONAL TURBULENCE, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 49(2), 1994, pp. 180000975-180000977
Citations number
13
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
49
Issue
2
Year of publication
1994
Pages
180000975 - 180000977
Database
ISI
SICI code
1063-651X(1994)49:2<180000975:VSF2A3>2.0.ZU;2-#
Abstract
Correlation analysis of two-dimensional (2D) turbulence is performed o n the basis of the Navier-Stokes equations. It is found that within th e inertial range of scales (L Re-1/2 much less than r much less than L ; L is the external scale, Re is the Reynolds number) there is a physi cally distinguished scale l(c) = L Re-1/4-a natural scale for coherent vortex patches. A hierarchy of vortical scales for 2D and 3D turbulen ce is found from a co-variance analysis of more detailed spatial struc ture of the vorticity field.