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Hall and ion-slip effects on MHD free convection flow of rotating Jeffrey fluid over an infinite vertical porous surface

机译：对无限垂直多孔表面旋转杰弗里液的MHD自由对流流程的霍尔和离子滑移效应

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摘要

An attempt has been made to explore Hall and ion-slip effects on an unsteady magnetohydrodynamic rotating flow of an electrically conducting, viscous, incompressible, and optically thick radiating Jeffrey fluid past an impulsively vertical moving porous plate. Analytical solutions of the governing equations are obtained by Laplace transform technique. The analytical expressions for skin friction, Nusselt number, and Sherwood number are also evaluated. The velocity, temperature, and concentration dis-tributions are displayed graphically in detail. From engineering point of view, the changes in skin fric-tion, Nusselt number, and Sherwood number are observed with the computational results presented in a tabular manner. It is observed that the effects of rotation and Hall current tend to accelerate second-ary velocity and decelerate primary velocity throughout the boundary layer region. Thermal and concentration buoyancy forces tend to accelerate both velocity components. Thermal radiation and thermal diffusion tend to enhance fluid temperature throughout the boundary layer region. Rotation and Jeffrey fluid parameters tend to enhance both stress components.
机译：已经尝试探索霍尔和离子滑移效果对导电，粘性，不可压缩和光学厚的辐射jeffrey液体的不稳定磁流动力学旋转流，经过冲动的垂直移动多孔板。通过拉普拉斯变换技术获得控制方程的分析解。还评估了皮肤摩擦，露珠数和舍伍德数的分析表达。速度，温度和浓度分布在图形上详细显示。从工程角度来看，观察皮肤煎，露珠和舍伍德号的变化，以表格形式呈现的计算结果。观察到旋转和霍尔电流的影响倾向于加速在整个边界层区域的第二叶速度和减速初级速度。热和浓度的浮力力倾向于加速两个速度分量。热辐射和热扩散倾向于增强整个边界层区域的流体温度。旋转和杰弗里液参数倾向于增强两个应力成分。

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  • 来源
    《Heat transfer》 |2021年第2期|1776-1798|共23页
  • 作者

    B. Hari Babu; P. Srinivasa Rao; S. V. K. Varma;

  • 作者单位

    Department of Mathematics & Computing Indian Institute of Technology (ISM) Dhanbad Jharkand India;

    Department of Mathematics & Computing Indian Institute of Technology (ISM) Dhanbad Jharkand India;

    Department of Mathematics Sri Venkateswara University Tirupati Andhra Pradesh India;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    convection flows; Hall effects; Jeffrey fluids; MHD flows; porous medium;

    机译：对流流动;霍尔效应;杰弗里液体;MHD流动;多孔介质;

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