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首页> 外文期刊>Journal of Energy, Heat and Mass Transfer >The Effects of Hall Currents, Soret and Dufour on an Unsteady MHD Flow and Heat Transfer along a Porous Flat Plate with Mass Transfer
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The Effects of Hall Currents, Soret and Dufour on an Unsteady MHD Flow and Heat Transfer along a Porous Flat Plate with Mass Transfer

机译:霍尔电流,Soret和Dufour对非稳态MHD流动和传质多孔板沿多孔平板传热的影响

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摘要

The study sought to investigate the influence of a magnetic field on heat and mass transfer along a porous flat plate in the presence of Hall currents, Soret (thermal-diffusion) and Dufour (diffusion-thermo) effects. The similarity solutions were obtained using suitable transformations and the resulting similarity ordinary differential equations were solved by Galerkin finite element method. A parametric study illustrating the influence of different flow parameters on velocity, temperature and concentration fields are investigated. The skin frictions at the plate due to tangential and lateral velocity fields and rate of heat and mass transfer due to temperature and concentration respectively are obtained in non - dimensional form. The effects of the physical parameters like Dufour number (Du) and Soret number (Sr) on these fields are discussed through graphs and results are physically interpreted.
机译:该研究试图研究在霍尔电流,索雷特(热扩散)和杜福尔(扩散热)效应的存在下,磁场对沿多孔平板传热和传质的影响。使用适当的变换获得相似性解,并通过Galerkin有限元方法求解相似性的常微分方程。对表明不同流量参数对速度,温度和浓度场的影响进行参数研究。分别以无量纲形式获得由于切向和横向速度场而在板上产生的皮肤摩擦,以及由于温度和浓度而引起的传热和传质速率。通过图形讨论了诸如杜福尔数(Du)和索雷特数(Sr)等物理参数对这些字段的影响,并对结果进行了物理解释。

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