Hydromagnetic free convection currents effects on boundary layer thickness

J.K. Kwanza; E.M. Marigi; M. Kinyanjui

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Hydromagnetic free convection currents effects on boundary layer thickness

机译：水磁自由对流对边界层厚度的影响

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In this study we discuss an unsteady free convection MHD flow past semi-infinite vertical porous plate. We have considered the flow in the presence of a strong magnetic field and therefore the electromagnetic force is very large. This brings in the phenomenon of Hall and Ion-slip currents. The effects of these two parameters together with that of viscous dissipation and radiation absorption among others on velocity, temperature and concentration profiles are presented. The profiles are presented graphically. As the partial differential equations governing this problem are highly non-linear they are solved numerically by a finite difference method. It is found that in presence of heating of the plate by free convection current the velocity boundary layer thickness decreases.

机译：在这项研究中，我们讨论了通过半无限垂直多孔板的非稳态自由对流MHD流。我们已经考虑了在强磁场存在下的流动，因此电磁力非常大。这带来了霍尔电流和离子滑移电流的现象。给出了这两个参数以及粘性耗散和辐射吸收对速度，温度和浓度分布的影响。这些配置文件以图形方式显示。由于控制该问题的偏微分方程是高度非线性的，因此可以通过有限差分法对其进行数值求解。已经发现，在通过自由对流加热板的情况下，速度边界层的厚度减小。

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来源
《Energy Conversion & Management》 |2010年第6期|p.1326-1332|共7页
作者
J.K. Kwanza; E.M. Marigi; M. Kinyanjui;
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作者单位

Department of Pure and Applied Mathematics, Jomo Kenyatta University of Agriculture and Technology. P.O. Box 62000-00200, Nairobi, Kenya;

Department of Pure and Applied Mathematics, Jomo Kenyatta University of Agriculture and Technology. P.O. Box 62000-00200, Nairobi, Kenya;

Department of Pure and Applied Mathematics, Jomo Kenyatta University of Agriculture and Technology. P.O. Box 62000-00200, Nairobi, Kenya;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
free convection; magnetic field; hall current; boundary layer; radiation absorption;

机译：自由对流;磁场;霍尔电流边界层;辐射吸收;

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Hydromagnetic free convection currents effects on boundary layer thickness

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