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

    Authors

    B. K. Shivamoggi

    Comments

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    Abbreviated Journal Title

    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.

    Journal 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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