首页> 外文期刊>Acta Ciencia Indica >THERMO DIFFUSION AND HALL EFFECTS ON HEAT AND MASS TRANSFER FLOW PAST AN INFINITE VERTICAL POROUS PLATE WITH VARIABLE SUCTION AND HEAT GENERATION
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THERMO DIFFUSION AND HALL EFFECTS ON HEAT AND MASS TRANSFER FLOW PAST AN INFINITE VERTICAL POROUS PLATE WITH VARIABLE SUCTION AND HEAT GENERATION

机译:传热和传热变化的无限垂直多孔多孔板传热和传热过程中的热扩散和霍尔效应

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摘要

This paper presents the Hall current and Soret effects on the combined effects of thermal and mass diffusion of an electrically conducting fluid past an infinite vertical porous plate in the presence of a uniform transverse Magnetic field. Here we assume that (i) the flow is subjected to variable suction velocity, (ii) the heat source Q* is the type Q*= Q (T_∞~1 - 7~1) and (iii) free stream velocity of the fluid vibrates about a constant mean value. The analytical expressions for the velocity, temperature and mass concentration of the fluid are obtained. The effects of Grashof number for heat transfer, Grashof number for mass transfer, Prandtl number, Magnetic parameter, permeability parameter, Schmidt number, Soret number, Hall current parameter and Heat source parameter on the above flow quantities are discussed numerically through graphs and tables. Also the expressions for skin friction, the rate of heat transfer coefficient (Nusselt number) and the rate of mass transfer coefficients (Sherwood number) are evaluated and discussed numerically through tables.
机译:本文介绍了霍尔电流和索雷特效应对在均匀横向磁场作用下通过无限垂直多孔板的导电流体的热和质量扩散的综合影响。在此我们假设(i)流体受到可变的吸入速度,(ii)热源Q *为Q * = Q(T_∞〜1-7〜1)类型,并且(iii)流体的自由流速度流体以恒定的平均值振动。获得了流体的速度,温度和质量浓度的解析表达式。通过图形和表格数字地讨论了格拉斯霍夫传热数,格拉斯霍夫传质数,普兰特数,磁参数,磁导率参数,施密特数,索雷特数,霍尔电流参数和热源参数对上述流量的影响。还通过表评估和讨论了用于皮肤摩擦的表达式,传热系数的速率(努塞尔数)和传质系数的速率(谢尔伍德数)。

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  • 来源
    《Acta Ciencia Indica》 |2011年第2期|p.301-307|共7页
  • 作者单位

    Dhanalakshmi College of Engineering, Chennai (T. N.), India;

    Dept. of Mathematics, S.V. University, Tirupati (A. P.), India;

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  • 正文语种 eng
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