ON THE 3-DIMENSIONAL INSTABILITY OF STRAINED VORTICES

被引：251

作者：

WALEFFE, F ^{[1
]}

机构：

[1] NASA,AMES RES CTR,CTR TURBULENCE RES,MS 202A1,MOFFETT FIELD,CA 94035

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1990年 / 2卷 / 01期

关键词：

D O I：

10.1063/1.857682

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The three-dimensional (3-D) instability of a two-dimensional (2-D) flow with elliptical streamlines has been proposed as a generic mechanism for the breakdown of many 2-D flows. A physical interpretation for the mechanism is presented together with an analytical treatment of the problem. It is shown that the stability of an elliptical flow is governed by an Ince equation. An analytical representation for a localized solution is given and establishes a direct link with previous computations and experiments. © 1989 American Institute of Physics.

引用

页码：76 / 80

页数：5

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