Natural convection in partially heated square cavity

被引:1
作者
Tabet, Sara [1 ]
Dellil, Ahmed Zineddine [1 ]
Azzi, Abbes [2 ]
机构
[1] Univ Oran, Inst Maintenance & Secur Ind, IMSI, LAHN,USTO, Oran, Algeria
[2] USTO, LAHN, Oran, Algeria
来源
MECHANIKA | 2016年 / 02期
关键词
natural Convection; Rayleigh number; finite differences; DIRECT NUMERICAL SIMULATIONS; FLOWS;
D O I
10.5755/j01.mech.22.2.12215
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Numerical investigations were led in a square cavity (L = 1), filled with air, of which a partially heated wall, by using a numerical code based on the finite difference method. The length of the heated part, at constant temperature, varies from 20% to 80% of the total length. The opposite vertical wall is supposed cold. The two other horizontal walls are thermically isolated. The calculation is made in laminar flow for Rayleigh number ranging from 10(4) to 10(6). For the validation, a preliminary calculation of the differentially heated cavity is successfully confronted with the works listed by De Vahl Davis. The outlines of temperature, the vectors speeds and the evolution of the Nusselt number are presented for various Rayleigh number while limiting itself to the laminar case.
引用
收藏
页码:119 / 124
页数:6
相关论文
共 20 条
[1]   Experimental benchmark data for turbulent natural convection in an air filled square cavity [J].
Ampofo, F ;
Karayiannis, TG .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2003, 46 (19) :3551-3572
[2]  
Azzi A., 2013, 11 C INT FRANC QUEB, P1
[3]   Natural convection heat transfer in partially open inclined square cavities [J].
Bilgen, E ;
Oztop, H .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2005, 48 (08) :1470-1479
[4]   A NUMERICAL STUDY OF TWO-DIMENSIONAL LAMINAR NATURAL-CONVECTION IN SHALLOW OPEN CAVITIES [J].
CHAN, YL ;
TIEN, CL .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1985, 28 (03) :603-612
[5]   LAMINAR NATURAL-CONVECTION IN SHALLOW OPEN CAVITIES [J].
CHAN, YL ;
TIEN, CL .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1986, 108 (02) :305-309
[6]  
DAVIS GD, 1983, INT J NUMER METH FL, V3, P249
[7]  
Le Quere P., 1987, THESIS U POITIERS FR
[8]   Natural convection in a differentially heated square cavity: Experimental investigation at Ra=1.69x10(9) [J].
Mergui, S ;
Penot, F .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1996, 39 (03) :563-574
[9]   TWO-DIMENSIONAL LAMINAR NATURAL-CONVECTION HEAT-TRANSFER FROM A FULLY OR PARTIALLY OPEN SQUARE CAVITY [J].
MIYAMOTO, M ;
KUEHN, TH ;
GOLDSTEIN, RJ ;
KATOH, Y .
NUMERICAL HEAT TRANSFER, 1989, 15 (04) :411-430
[10]  
Ndame A., 1992, THESIS U POITIERS FR