Periodic oscillation in curved duct flows

被引：39

作者：

Wang, LQ ^{[1
]}

Yang, TL ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

PHYSICA D-NONLINEAR PHENOMENA | 2005年 / 200卷 / 3-4期

关键词：

bifurcation; dean number; stability;

D O I：

10.1016/j.physd.2004.11.003

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We report the first experimental evidence and numerical prediction of fully developed periodic oscillation in curved duct flows. The oscillation is between symmetric/asymmetric 2-cell flows and symmetric/asymmetric 4-cell flows. It appears in the range where there are no stable steady fully developed flows. We also report both experimental and numerical evidence of flow stability change along a solution branch without passing limit/bifurcation points. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：296 / 302

页数：7

共 10 条

[1] [Anonymous], 1986, ADV TRANSPORT PROC
[2] [Anonymous], 1980, SERIES COMPUTATIONAL, DOI [DOI 10.1201/9781482234213, 10.1201/9781482234213]
[3] FLOW IN CURVED PIPES
BERGER, SA
TALBOT, L
YAO, LS
[J]. ANNUAL REVIEW OF FLUID MECHANICS, 1983, 15 : 461 - 512
[4] FLOW IN CURVED PIPES
ITO, H
[J]. JSME INTERNATIONAL JOURNAL, 1987, 30 (262) : 543 - 552
[5] COMBINED FREE-CONVECTIVE AND FORCED-CONVECTIVE HEAT-TRANSFER AND FLUID-FLOW IN ROTATING CURVED RECTANGULAR TUBES
MIYAZAKI, H
[J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1973, 95 (01): : 64 - 71
[6] SEYDEL R, 1994, PRATICAL BIFURCATION
[7] Bifurcation and stability of forced convection in curved ducts of square cross-section
Wang, LQ
Yang, TL
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2004, 47 (14-16) : 2971 - 2987
[8] Flow transitions and combined free and forced convective heat transfer in rotating curved channels: The case of positive rotation
Wang, LQ
Cheng, KC
[J]. PHYSICS OF FLUIDS, 1996, 8 (06) : 1553 - 1573
[9] WANG LQ, 2005, IN PRESS CHAOS SOLIT, V24
[10] WINTERS KH, 1987, J FLUID MECH, V180, P342

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