Direct numerical simulation tests of eddy viscosity in two dimensions

A. Chekhlov; S. A. Orszag; S. Sukoriansky; B. Galperin; I. Staroselsky

doi:10.1063/1.868437

Direct numerical simulation tests of eddy viscosity in two dimensions

A. Chekhlov, S. A. Orszag, S. Sukoriansky, B. Galperin, I. Staroselsky

Department of Mechanical Engineering

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20 Scopus citations

Abstract

Two-parametric eddy viscosity (TPEV) and other spectral characteristics of two-dimensional (2-D) turbulence in the energy transfer subrange are calculated from direct numerical simulation (DNS) with 512² resolution. The DNS-based TPEV is compared with those calculated from the test field model (TFM) and from the renormalization group (RG) theory. Very good agreement between all three results is observed.

Original language	English
Pages (from-to)	2548-2550
Number of pages	3
Journal	Physics of Fluids
Volume	6
Issue number	7
DOIs	https://doi.org/10.1063/1.868437
State	Published - 1 Jan 1994

ASJC Scopus subject areas

Computational Mechanics
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1063/1.868437

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abstract = "Two-parametric eddy viscosity (TPEV) and other spectral characteristics of two-dimensional (2-D) turbulence in the energy transfer subrange are calculated from direct numerical simulation (DNS) with 5122 resolution. The DNS-based TPEV is compared with those calculated from the test field model (TFM) and from the renormalization group (RG) theory. Very good agreement between all three results is observed.",

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AU - Orszag, S. A.

AU - Sukoriansky, S.

AU - Galperin, B.

AU - Staroselsky, I.

PY - 1994/1/1

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AB - Two-parametric eddy viscosity (TPEV) and other spectral characteristics of two-dimensional (2-D) turbulence in the energy transfer subrange are calculated from direct numerical simulation (DNS) with 5122 resolution. The DNS-based TPEV is compared with those calculated from the test field model (TFM) and from the renormalization group (RG) theory. Very good agreement between all three results is observed.

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Direct numerical simulation tests of eddy viscosity in two dimensions

Abstract

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