具有欧姆耗散和变导热系数的多孔介质中微极流体的磁-索-杜弗热辐射双扩散对流传热传质

IF 5.4 2区工程技术 Q1 ENGINEERING, AEROSPACE

Propulsion and Power Research Pub Date : 2022-03-01 DOI:10.1016/j.jppr.2022.02.001

Dulal Pal , Bhuban Chandra Das , Kuppalapalle Vajravelu

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引用次数: 8

摘要

本文建立了一个数值边界层流动模型，用于分析微极流体在横向磁场作用下通过具有粘欧姆耗散的复合材料中的垂直板时的对流换热特性。采用龙格-库塔-费贝格方法对基本控制方程进行了数值求解。计算结果表明，增加普朗特数可以降低速度、温度和微旋分布。增大或减小Soret-Dufour参数均能增强浓度分布，且表面摩擦系数值随施密特数的增加而减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Magneto-Soret-Dufour thermo-radiative double-diffusive convection heat and mass transfer of a micropolar fluid in a porous medium with Ohmic dissipation and variable thermal conductivity

This paper deals with developing a numerical boundary layer flow model to analyze convective heat transfer characteristics of a micropolar fluid past a vertical plate in a composite material with viscous-Ohmic dissipations in the presence of a transverse magnetic field. The basic governing equations are solved numerically by using the Runge-Kutta-Fehlberg method. The computed results reveal a reduction in the velocity, temperature, and microrotation profiles by increasing the Prandtl number. Also, the concentration distribution is enhanced by enhancing or decreasing Soret-Dufour parameter, and there seems to be decremented in the skin-friction coefficient values with Schmidt number.

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来源期刊

Propulsion and Power Research Multiple-

CiteScore

7.50

自引率

5.70%

发文量

期刊介绍： Propulsion and Power Research is a peer reviewed scientific journal in English established in 2012. The Journals publishes high quality original research articles and general reviews in fundamental research aspects of aeronautics/astronautics propulsion and power engineering, including, but not limited to, system, fluid mechanics, heat transfer, combustion, vibration and acoustics, solid mechanics and dynamics, control and so on. The journal serves as a platform for academic exchange by experts, scholars and researchers in these fields.