Systems of Hydrodynamic Type that Approximate Two-Dimensional Ideal Fluid Equations

被引：2

作者：

Dymnikov, V. P. ^{[1
]}

Perezhogin, P. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Numer Math, Moscow 119333, Russia

来源：

IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS | 2018年 / 54卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

ideal fluid; equilibrium states; finite-dimensional approximations; Hamiltonian systems; turbulence; STATISTICAL-MECHANICS; EQUILIBRIUM STATES; FLOW;

D O I：

10.1134/S0001433818030040

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Statistical properties of different finite-dimensional approximations of two-dimensional ideal fluid equations are studied. A special class of approximations introduced by A.M. Obukhov (systems of hydrodynamic type) is considered. Vorticity distributions over area and quasi-equilibrium coherent structures are studied. These coherent structures are compared to structures occurring in a viscous fluid with random forcing.

引用

页码：232 / 241

页数：10

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