INERTIAL ORGANIZATION OF A 2-DIMENSIONAL TURBULENT VORTEX STREET

被引：27

作者：

THESS, A ^{[1
]}

SOMMERIA, J ^{[1
]}

JUTTNER, B ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM ROSSENDORF, D-01314 DRESDEN, GERMANY

来源：

PHYSICS OF FLUIDS | 1994年 / 6卷 / 07期

关键词：

D O I：

10.1063/1.868189

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The formation of organized structures resulting from the evolution of two parallel opposite vortex sheets in a two-dimensional perfect fluid is studied, employing an equilibrium statistical theory. The system is confined in a channel in which periodic solutions of the statistical equilibrium equations are considered. It is found that the statistical equilibrium state of maximum entropy is a staggered arrangement of alternating vortex patches-the turbulent counterpart to the von-Karman vortex street. However, these vortices spread over the whole width of the channel and the pattern with the maximum allowed wavelength is always preferred: the confinement by the boundary conditions is essential. The theoretical predictions are supported by direct numerical simulations of the two-dimensional Navier-Stokes equation at high Reynolds number.

引用

页码：2417 / 2429

页数：13

共 23 条

[1] THE FORMATION OF VORTEX STREETS [J].