Title

Spectral Laws For The Energy Cascade In A 2-Dimensional Turbulence

Authors

B K. Shivamoggi

Title - Alternative

Nouvo Cimento Soc. Ital. Fis. B-Gen. Phys. Relativ. Astron. Math. Phys. Methods

Keywords

KINETIC-ENERGY; Physics, Multidisciplinary

Abstract

We give a Von Karman-type model for the inertial transfer to develop a generalized spectral law for the inverse energy cascade in a forced two-dimensional turbulence that is in agreement with the experimental observations (Sommeria, 1986) of the inverse energy cascade in a statistically steady two-dimensional turbulence. We also demonstrate that the transfer of turbulent kinetic energy at small wave numbers can be modeled as a stationary continuous spectral cascading process. The equipartition spectrum for two-dimensional turbulence is demonstrated to be viscous in character and to differ radically from the equipartition spectrum for three-dimensional turbulence which is inviscid in character.

Publication Title

Nuovo Cimento Della Societa Italiana Di Fisica B-General Physics Relativity Astronomy and Mathematical Physics and Methods

Volume

105

Issue/Number

12

Publication Date

1-1-1990

Document Type

Article

Language

English

First Page

1359

Last Page

1365

WOS Identifier

WOS:A1990EV07200006

ISSN

0369-3554

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