Numerical study on natural convection in a square enclosure containing a rectangular heated cylinder

被引：9
|
作者：
Lu J. [1 ]
Shi B. [2 ]
Guo Z. [1 ]
Chai Z. [1 ]
机构：
[1] State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology
[2] School of Mathematics and Statistics, Huazhong University of Science and Technology
来源：
Frontiers of Energy and Power Engineering in China | 2009年 / 3卷 / 4期
基金：
中国国家自然科学基金;
关键词：
Buoyant regime; Heated cylinder; Lattice Boltzmann; Natural convection;
D O I：
10.1007/s11708-009-0078-x
中图分类号：
学科分类号：
摘要：
In this paper, the natural convection in a square enclosure with a rectangular heated cylinder is investigated via the lattice Boltzmann method. A detailed study is conducted on the effect of the cylinder width and the Rayleigh number on the fluid flow and heat transfer. The flow structures and heat transfer patterns are classified into eight buoyant regimes, i. e., four steady regimes, two periodic regimes, one multiple periodic regime, and one chaos regime, two of which are reported for the first time. © Higher Education Press and Springer-Verlag 2009.
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页码：373 / 380
页数：7
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