Hydromagnetic natural convection from an inclined porous square enclosure with heat generation

被引:115
作者
Khanafer, KM [1 ]
Chamkha, AJ [1 ]
机构
[1] Kuwait Univ, Coll Engn & Petr, Dept Mech & Ind Engn, Safat 13060, Kuwait
关键词
D O I
10.1080/10407789808913972
中图分类号
O414.1 [热力学];
学科分类号
摘要
The problem of unsteady, laminar, two-dimensional hydromagnetic natural convection heat transfer in an inclined square enclosure filled with a fluid-saturated porous medium in Me presence of a transverse magnetic field and fluid heat generation effects is studied numerically. The walls of the enclosure are maintained at constant temperatures. The flow in the porous region is modeled using the Brinkman-extended Darcy's law to account for the no-slip conditions at the wads. The control volume method is used to solve the governing balance equations for different values of the Darcy number. Hartmann number, and the inclination angle. Favorable comparisons with previously published work are performed. These comparisons confirmed the correctness of the numerical results. The obtained numerical results are presented graphically in terms of streamlines and isotherms as wed as velocity and temperature profiles at midsections of the cavity to illustrate interesting features of the solution.
引用
收藏
页码:891 / 910
页数:20
相关论文
共 29 条
[1]
NATURAL-CONVECTION IN AN EXTERNALLY HEATED VERTICAL OR INCLINED SQUARE BOX CONTAINING INTERNAL ENERGY-SOURCES [J].
ACHARYA, S ;
GOLDSTEIN, RJ .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1985, 107 (04) :855-865
[2]
MAGNETOHYDRODYNAMIC MIXED CONVECTION FROM A VERTICAL PLATE EMBEDDED IN A POROUS-MEDIUM [J].
ALDOSS, TK ;
ALNIMR, MA ;
JARRAH, MA ;
ALSHAER, BJ .
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 1995, 28 (05) :635-645
[3]
BAKER L, 1997, NCL SCI ENG, V66, P231
[4]
BAKER L, 1976, NUCL SCI ENG, V66, P223
[5]
Effect of an electromagnetic field on natural convection in an inclined porous layer [J].
Bian, W ;
Vasseur, P ;
Bilgen, E ;
Meng, F .
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 1996, 17 (01) :36-44
[6]
BURRETA RJ, 1976, ASME, V98, P249
[7]
Non-Darcy hydromagnetic free convection from a cone and a wedge in porous media [J].
Chamkha, AJ .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 1996, 23 (06) :875-887
[8]
Non-Darcy fully developed mixed convection in a porous medium channel with heat generation/absorption and hydromagnetic effects [J].
Chamkha, AJ .
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 1997, 32 (06) :653-675
[9]
NATURAL CONVECTION IN ENCLOSED POROUS MEDIA WITH RECTANGULAR BOUNDARIES [J].
CHAN, BKC ;
IVEY, CM ;
BARRY, JM .
JOURNAL OF HEAT TRANSFER, 1970, 92 (01) :21-&
[10]
CHURBANOV AG, 1994, INT J HEAT MASS TRAN, V37, P1969