Magnetohydrodynamic natural convection in trapezoidal cavities

被引：76

作者：

Hasanuzzaman, M. ^{[2
]}

Oztop, Hakan F. ^{[3
]}

Rahman, M. M. ^{[1
]}

Rahim, N. A. ^{[2
]}

Saidur, R. ^{[2
,4
]}

Varol, Y. ^{[5
]}

机构：

[1] Bangladesh Univ Engn & Technol, Dept Math, Dhaka 1000, Bangladesh

[2] Wisma R&D Univ Malaya, UMPEDAC, Kuala Lumpur 59990, Malaysia

[3] Firat Univ, Fac Technol, Dept Mech Engn, TR-23169 Elazig, Turkey

[4] Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur 50603, Malaysia

[5] Firat Univ, Fac Technol, Dept Automot Engn, TR-23169 Elazig, Turkey

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2012年 / 39卷 / 09期

关键词：

Trapezoidal enclosure; Natural convection; Magnetic field; LID-DRIVEN CAVITY; FINITE-ELEMENT SIMULATION; MIXED CONVECTION; HEAT-TRANSFER; NUMERICAL-ANALYSIS; POROUS-MEDIUM; ENCLOSURE; FLOW; SQUARE;

D O I：

10.1016/j.icheatmasstransfer.2012.08.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A computational numerical work has been done to see the effects of magnetic field on natural convection for a trapezoidal enclosure. Both inclined walls and bottom wall have constant temperature where the bottom wall temperature is higher than the inclined walls. Top wall of the cavity is adiabatic. To investigate the effects, finite element method is used to solve the governing equations for different parameters such as Rayleigh number, Hartmann number and inclination angle of inclined wall of the enclosure. It is found that heat transfer decreased by 20.70% and 16.15% as phi increases from 0 to 60 at Ra = 10(5) and 10(6) respectively. On the other hand, heat transfer decreased by 20.28% and 13.42% as Ha increases from 0 to 50 for Ra = 10(5) and 10(6) respectively. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1384 / 1394

页数：11

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