Natural convection with volumetric heat generation and external magnetic field in differentially heated enclosure

被引：8

作者：

Berrahil, Farid ^{[1
]}

Benissaad, Smail ^{[2
]}

Cherifa, Abid ^{[3
]}

Medale, Marc ^{[3
]}

机构：

[1] Univ Jijel, Fac Sci & Technol, LEAM, Jijel, Algeria

[2] Univ Constantine 1, Fac Sci & Technol, Dept Genie Mecan, LEAP, Constantine, Algeria

[3] Aix Marseille Univ, IUSTI CNRS UMR 13453, Marseille, France

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2014年 / 228卷 / 15期

关键词：

Natural convection; magnetic field; internal heat source; enclosure; numerical solution; RECTANGULAR ENCLOSURE; CAVITY; FLOW; CONDUCTION;

D O I：

10.1177/0954406214521792

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This work presents a numerical study of natural convection in a laterally heated cavity filled with an electrically conductive fluid (Pr=0.0321) in the presence of an external magnetic field and an internal heat source. The finite volume method with the SIMPLER algorithm is used to solve the system of equations governing the magnetohydrodynamics flow. The influence of volumetric heating S-Q on the flow structure and on the heat transfer within the cavity for Gr=10(4), 10(5), and 10(6) was examined. The effects of aspect ratio (A=1, 0.5, and 2), Prandtl number (low Prandtl number fluids), and magnetic field (Ha=0 to 100) were determined in the steady state with internal heat generation. Two orientations of the magnetic field were considered in order to have better control of the flow. The strongest stabilization of the flow field with internal heat generation is found when the magnetic field is oriented horizontally.

引用

页码：2711 / 2727

页数：17

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