Lattice Boltzmann simulation of natural convection around a horizontal elliptic cylinder inside a square enclosure

被引：105

作者：

Bararnia, H. ^{[1
]}

Soleimani, Soheil ^{[1
]}

Ganji, D. D. ^{[1
]}

机构：

[1] Babol Univ Technol, Dept Mech Engn, Babol Sar, Iran

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2011年 / 38卷 / 10期

关键词：

Lattice Boltzmann method; Natural convection; Square enclosure; Elliptic cylinder; HEAT-TRANSFER; ENTROPY GENERATION; FLUID-FLOW; ANNULUS; FORMULATION; TRANSPORT;

D O I：

10.1016/j.icheatmasstransfer.2011.07.012

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Natural convection between a square outer cylinder and a heated elliptic inner cylinder has been studied numerically. The inner and outer walls are maintained at temperatures T-h and T-c, respectively, with T-h>T-c. lattice Boltzmann method (LBM) has been used to investigate the hydrodynamic and thermal behaviors of the fluid at various vertical positions of the inner cylinder for different Rayleigh numbers ranging from 10(3) to 10(6). The results show that streamlines, isotherms, and the number, size and formation of the cells strongly depend on the Rayleigh number and the position of inner cylinder. The changes in heat transfer quantities have also been presented. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1436 / 1442

页数：7

共 30 条

[1] Effect of nanofluid variable properties on natural convection in enclosures [J].