Numerical simulation of natural convection in square cavities with power function temperature wall by lattice Boltzmann method

被引：0

作者：

Tian, Xin ^{[1
]}

Shui, Zhengwei ^{[1
]}

Ren, Chiyuan ^{[2
]}

机构：

[1] Southwest Petr Univ, Apply Tech Coll, Chengdu 610500, Peoples R China

[2] Southwest Petr Univ, Coll Sci, Chengdu 610500, Peoples R China

来源：

PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON MECHATRONICS, MATERIALS, CHEMISTRY AND COMPUTER ENGINEERING 2015 (ICMMCCE 2015) | 2015年 / 39卷

关键词：

Natural convection; Square cavity; Power function temperature boundary; Lattice Boltzmann model; DRIVEN CAVITY; SURFACE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this study, a thermal lattice Boltzmann model is employed to investigate the natural convection in square cavities with power function temperature boundary. The horizontal wall of cavities is adiabatic, and the temperature at the west and east wall is set to constant or a power function. Four cases classified by temperature condition are investigated in detail at different Rayleigh number, 103,104,105,106 and power index, 0, 0.5, 1, 2, 4 by Nusselt number and some hydrodynamic variables. Results show: though the average temperature different between west and east wall is same in the four cases on given power index, the thermal and hydrodynamic performance are of notable different, by which a useful suggestion about heat transfer rate in square cavities is put forward.

引用

页码：862 / 867

页数：6

共 20 条

[1]

[Anonymous], 1962, INT J NUMER METHODS, DOI DOI 10.1002/FLD.1650030305

[2]

Bajan A., 2004, CONVECTION HEAT TRAN

[3] Heatlines based natural convection analysis in tilted isosceles triangular enclosures with linearly heated inclined walls: effect of various orientations [J].

Basak, Tanmay ;

Anandalakshmi, R. ;

Roy, Monisha .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2013, 43 :39-45

[4]

Catton I., 1978, International Heat Transfer Conference, V6, DOI [10.1615/IHTC6.2350, DOI 10.1615/IHTC6.2350]

[5]

DEVAHLDAVIS G, 1983, INT J NUMER METH FL, V3, P227

[6]

Dillon H.E., 2009, COMSOL C

[7] Combination technique for improving natural convection cooling in electronics [J].

Florio, L. A. ;

Harnoy, A. .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2007, 46 (01) :76-92

[8] Natural convection heat transfer on the outer surface of inclined cylinders [J].

Heo, Jeong-Hwan ;

Chung, Bum-Jin .

CHEMICAL ENGINEERING SCIENCE, 2012, 73 :366-372

[9] FINITE VOLUME MULTIGRID PREDICTION OF LAMINAR NATURAL-CONVECTION - BENCH-MARK SOLUTIONS [J].

HORTMANN, M ;

PERIC, M ;

SCHEUERER, G .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 1990, 11 (02) :189-207

[10] Temperature distribution of an optical fiber traversing through a chemical vapor deposition reactor [J].

Iwanik, PO ;

Chiu, WKS .

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2003, 43 (03) :221-237

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