Natural Convection in a Square Enclosure with a Square Heat Source at Different Horizontal and Diagonal Eccentricities

被引：32

作者：

Dash, S. M. ^{[1
]}

Lee, T. S. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2015年 / 68卷 / 06期

关键词：

LATTICE BOLTZMANN METHOD; IMMERSED BOUNDARY METHOD; CIRCULAR-CYLINDER; MODELS; FLOWS;

D O I：

10.1080/10407782.2014.994414

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The present article aims to extend a previous numerical study on the natural convection process in a square enclosure with a vertical eccentric square heat source (cylinder) [1]. Here, we investigated buoyancy-induced convective flow and heat transfer for horizontal and diagonal eccentric displacement in a square cylinder. Numerical studies are performed for Rayleigh numbers in the range 10(3)-10(6), using our recently developed flexible forcing IB-thermal lattice Boltzmann method scheme [1]. Detailed analysis of isotherms, streamlines, and Nusselt number distribution as functions of Rayleigh number and eccentricity is provided in this paper.

引用

页码：686 / 710

页数：25

共 28 条

[1] Natural convection in an annulus between two isothermal concentric square ducts [J].

Asan, H .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2000, 27 (03) :367-376

[2] Lattice Boltzmann simulation of natural convection around a horizontal elliptic cylinder inside a square enclosure [J].

Bararnia, H. ;

Soleimani, Soheil ;

Ganji, D. D. .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2011, 38 (10) :1436-1442

[3] Two-Parameter Thermal Lattice BGK Model with a Controllable Prandtl Number [J].

Chen Y. ;

Ohashi H. ;

Akiyama M. .

Journal of Scientific Computing, 1997, 12 (2) :169-185

[4] COMPARATIVE ANALYSIS OF THERMAL MODELS IN THE LATTICE BOLTZMANN METHOD FOR THE SIMULATION OF NATURAL CONVECTION IN A SQUARE CAVITY [J].

Choi, Seok-Ki ;

Kim, Seong-O .

NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS, 2011, 60 (02) :135-145

[5] NATURAL CONVECTION FROM INCLINED SQUARE CYLINDER USING NOVEL FLEXIBLE FORCING IB-LBM APPROACH [J].

Dash, S. M. ;

Lee, T. S. .

ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS, 2014, 8 (01) :91-103

[6]

Dash S. M., 2013, NUMER HEAT TRANSFE A, V65, P531

[7] A numerical study of natural convection around a square, horizontal, heated cylinder placed in an enclosure [J].

De, Arnab Kumar ;

Dalal, Amaresh .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2006, 49 (23-24) :4608-4623

[8] The immersed boundary-lattice Boltzmann method for solving fluid-particles interaction problems [J].

Feng, ZG ;

Michaelides, EE .

JOURNAL OF COMPUTATIONAL PHYSICS, 2004, 195 (02) :602-628

[9] Discrete lattice effects on the forcing term in the lattice Boltzmann method [J].

Guo, Zhaoli ;

Zheng, Chuguang ;

Shi, Baochang .

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2002, 65 (04) :1-046308

[10] Two-dimensional and unsteady natural convection in a horizontal enclosure with a square body [J].

Ha, MY ;

Kim, IK ;

Yoon, HS ;

Yoon, KS ;

Lee, JR ;

Balachandar, S ;

Chun, HH .

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2002, 41 (02) :183-210

← 1 2 3 →