DIRECT NUMERICAL-SIMULATION TESTS OF EDDY VISCOSITY IN 2 DIMENSIONS

A CHEKHLOV, SA ORSZAG, S SUKORIANSKY, B GALPERIN, I STAROSELSKY

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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.
Original languageEnglish
Pages (from-to)2548-2550
JournalPhysics of Fluids
Volume6
Issue number7
DOIs
StatePublished - Jul 1994

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