NONLINEAR STABILITY ANALYSIS OF 2-DIMENSIONAL PATTERNS IN THE WAKE OF A CIRCULAR-CYLINDER

被引：11

作者：

CHIFFAUDEL, A

机构：

[1] Department of Aerospace Engineering, University of Southern California, Los Angeles, CA

来源：

EUROPHYSICS LETTERS | 1992年 / 18卷 / 07期

关键词：

HYDRODYNAMIC STABILITY AND INSTABILITY; TURBULENT FLOWS; CONVECTION; AND HEAT TRANSFER;

D O I：

10.1209/0295-5075/18/7/004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A two-dimensional Ginzburg-Landau amplitude equation for the 3D wake of a circular cylinder is derived. This equation, which accounts for the rotational symmetry breaking of the flow, allows us to perform a first analytical study of the secondary instabilities of the 2D wake patterns. The results are applied toward the stability of oblique and (chevrons) patterns. A global overview of the origin, the dynamics, and the stability of oblique shedding patterns is finally given and compared to experimental data.

引用

页码：589 / 594

页数：6

共 21 条

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