Global flow instability in a lid-driven cavity

被引：43

作者：

Boppana, V. B. L. ^{[2
]}

Gajjar, J. S. B. ^{[1
]}

机构：

[1] Univ Manchester, Sch Math, Manchester M13 9PL, Lancs, England

[2] Univ Southampton, Sch Engn Sci, Southampton SO17 1BJ, Hants, England

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 2010年 / 62卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

Hopf bifurcation; lid-driven cavity; global stability; aspect ratio; Navier-Stokes; NAVIER-STOKES EQUATIONS; INCOMPRESSIBLE-FLOW; REYNOLDS-NUMBER; BIFURCATION; STABILITY; COMPUTATION; DYNAMICS;

D O I：

10.1002/fld.2040

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The stability of flow in a lid-driven cavity is investigated using; an accurate numerical technique based on a hybrid scheme with spectral collocation and high-order finite differences. A global stability analysis is carried out and critical parameters are identified for various aspect ratios. It is found that while there is reasonable agreement with the literature for the critical parameters leading, to loss of stability for the square cavity. there are Significant discrepancies for cavities of aspect ratios 1.5 and 2. Simulations of the linearized unsteady equations confirm the results from the global stability analysis for aspects ratios A = 1.1.5 and A = 2. Copyright (C) 2009 John Wiley & Sons, Ltd.

引用

页码：827 / 853

页数：27

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