Effects of a magnetic field on chaotic convection in fluid layer heated from below

被引:16
作者
Mahmud, M. N. [2 ]
Hashim, I. [1 ]
机构
[1] Univ Kebangsaan Malaysia, Sch Math Sci, Ctr Modelling & Data Anal, Bangi 43600, Selangor, Malaysia
[2] Univ Kuala Lumpur, Malaysian Inst Chem & Bioengn Technol, Alor Gajah 78000, Melaka, Malaysia
关键词
Chaos; Magnetic field; Lorenz equations; BUOYANCY-DRIVEN CONVECTION; PRANDTL NUMBER CONVECTION; TRANSITIONS; HYSTERESIS;
D O I
10.1016/j.icheatmasstransfer.2010.12.023
中图分类号
O414.1 [热力学];
学科分类号
摘要
Features of nonlinear dynamics of thermal convection in an electrically conducting fluid layer heated from below and cooled from above subjected to a constant magnetic field are studied theoretically. The Galerkin truncated approximation is employed to derive a low dimensional Lorenz-like model. Numerical analysis was performed to examine the influence of magnetic field on the phase space trajectory of various chaotic regimes. The result indicates that it is possible to suppress or enhance the chaotic convection. (C) 2010 Elsevier Ltd. All rights reserved.
引用
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页码:481 / 486
页数:6
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