Periodic and localized states in natural doubly diffusive convection

被引:18
作者
Bergeon, A. [1 ]
Knobloch, E. [2 ]
机构
[1] Univ Toulouse 3, CNRS, IMFT, UMR 5502,UFR,MIG, F-31062 Toulouse, France
[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
基金
美国国家科学基金会;
关键词
doubly diffusive instability; localized states; numerical continuation;
D O I
10.1016/j.physd.2007.11.024
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Numerical continuation is used to follow branches of steady doubly diffusive convection in a vertical slot driven by imposed horizontal temperature and concentration gradients. No-slip boundary conditions are used on the lateral walls; periodic boundary conditions with large spatial period are used in the vertical direction. A variety of different states, both spatially periodic and spatially localized, are identified and the profusion of the resulting solution branches is linked to a phenomenon known as homoclinic snaking. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:1139 / 1150
页数:12
相关论文
共 48 条
[1]  
[Anonymous], DOMAIN DECOMPOSITION
[2]   Nonlinear doubly diffusive convection in vertical enclosures [J].
Bardan, G ;
Bergeon, A ;
Knobloch, E ;
Mojtabi, A .
PHYSICA D-NONLINEAR PHENOMENA, 2000, 138 (1-2) :91-113
[3]   Spatially localized binary-fluid convection [J].
Batiste, Oriol ;
Knobloch, Edgar ;
Alonso, Arantxa ;
Mercader, Isabel .
JOURNAL OF FLUID MECHANICS, 2006, 560 :149-158
[4]   NUMERICAL STUDY OF DOUBLE-DIFFUSIVE NATURAL-CONVECTION IN A SQUARE CAVITY [J].
BEGHEIN, C ;
HAGHIGHAT, F ;
ALLARD, F .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1992, 35 (04) :833-846
[5]   Cooperating thermosolutal convection in enclosures .1. Scale analysis and mass transfer [J].
Bennacer, R ;
Gobin, D .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1996, 39 (13) :2671-2681
[6]   NONADIABATIC EFFECTS IN CONVECTION [J].
BENSIMON, D ;
SHRAIMAN, BI ;
CROQUETTE, V .
PHYSICAL REVIEW A, 1988, 38 (10) :5461-5464
[7]   Double diffusive instability in an inclined cavity [J].
Bergeon, A ;
Ghorayeb, K ;
Mojtabi, A .
PHYSICS OF FLUIDS, 1999, 11 (03) :549-559
[8]   Natural doubly diffusive convection in three-dimensional enclosures [J].
Bergeon, A ;
Knobloch, E .
PHYSICS OF FLUIDS, 2002, 14 (09) :3233-3250
[9]   Localized states in the generalized Swift-Hohenberg equation [J].
Burke, John ;
Knobloch, Edgar .
PHYSICAL REVIEW E, 2006, 73 (05)
[10]  
Canuto C., 1991, SPECTRAL METHODS FLU, Vsecond