Effect of Constant Magnetic Field on Convective Heat Transfer through Anisotropic River Beds

Julien Yovogan; Gérard Degan; Latif Fagbemi

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Effect of Constant Magnetic Field on Convective Heat Transfer through Anisotropic River Beds

机译：恒定磁场对通过各向异性河床对流换热的影响

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An analytical investigation is conducted to study the effect of magnetic field on convection heat transfer through packed porous beds which consists of a horizontal fluid layer (river bed) and a porous zone with anisotropic permeability and underlined by a surface heated by a constant temperature T1. The free surface of the fluid layer overlying the horizontal porous layer receives solar rays to length of day and is then considered heated isothermally at temperature T2 such as T1 < T2. Flow in porous medium is assumed to be governed by the generalized Brinkman-extended Darcy law and in the fluid layer by the Navier-Stokes model. The Beavers-Joseph condition is applied at the interface between the two layers. The influence of Hartmann number and hydrodynamic anisotropy on the convective phenomenon is investigated analytically. It is found that the magnetic field, the anisotropic permeability and the thickness of the porous lining, ε, have a strong influence of the geothermal convective flow and the heat transfer rate.

机译：进行了分析研究，以研究磁场对通过多孔多孔床的对流传热的影响，多孔多孔床由水平流体层（河床）和具有各向异性渗透性的多孔区域组成，并以加热到恒定温度 T1 。覆盖水平多孔层的流体层的自由表面接收日光直到一天，然后被认为是在温度 T2 如 T1 em> T2 。假定多孔介质中的流动受广义Brinkman扩展的达西定律支配，而流体层中的流动则受Navier-Stokes模型支配。 Beavers-Joseph条件应用于两层之间的界面。分析了哈特曼数和流体动力学各向异性对对流现象的影响。发现磁场，各向异性渗透率和多孔衬里的厚度ε对地热对流和传热速率有很大的影响。 展开▼

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《Journal of Crystallization Process and Technology》 |2018年第2期|共15页

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Julien Yovogan; Gérard Degan; Latif Fagbemi;
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中图分类应用晶体学;

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1. Effect of anisotropic permeability on convective heat transfer through a porous river bed underlying a fluid layer [J] . Julien Yovogan, Gerard Degan Journal of engineering mathematics . 2013,第1期

机译：各向异性渗透率对通过流体层下面的多孔河床对流换热的影响

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机译：来自具有感应磁场，恒定热量和质量通量的垂直多孔板的混合对流流动引起的不稳定传热和传质

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机译：气体注入和横向磁场作用下汞的自然对流传热增强。

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机译：恒定磁场下立方体热电传导液的自然对流的数值分析。第三次报告。传热增强效果，离散Del操作员方法。

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机译：闪蒸热处理的方法，例如通过微波辐射加热材料，包括通过搅拌材料和预热床将材料加热预定的时间，以便通过传导和对流将热量传递到材料上

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机译：用于例如加热场，具有磁化结构，在气隙中产生恒定的磁场，并且铁磁元件面对面放置，并以一定间距形成气隙

5. Convection room heating using fluidic heat transfer medium - comprising vegetable oil heated by microwave field [P] . 外国专利： DE2928520A1 . 1981-01-15

机译：使用流体传热介质的对流室加热-包含通过微波场加热的植物油

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Effect of Constant Magnetic Field on Convective Heat Transfer through Anisotropic River Beds

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