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Irreversibility intent triple diffusion stream over porous medium plate with radiation and joule heating
Chemical Engineering Communications ( IF 2.5 ) Pub Date : 2021-11-09 , DOI: 10.1080/00986445.2021.1998011
F. Mabood 1 , S. Suriya Uma Devi 2 , W. A. Khan 3 , M. Prakash 4 , Wasim Jamshed 5
Affiliation  

Abstract

The influence of thermal radiation and Joule heating on the entropy inception by triple diffusion over the permeable plate is examined, as well as its influence on other physical aspects of the problem. The radiative and Joules heating effects are being investigated using a mathematical model. The irreversibility caused variations in entropy inception due to fluid, heat fluxes, and solute concentration of salts utilized. The non-dimensioned modeled equations were interpreted numerically by shooting approach using Runge-Kutta-Fehlberg scheme. Numerical outcomes were plotted in the form of graphs for flow and thermal distributions, entropy inception rate, and Nusselt number because of suction/injection through the plate, and the results of concentration based parametric analysis were plotted out for local entropy inception rate, local Bejan number, local mass Bejan number and local irreversibility ratio based on assisting flow and opposing flow. Local mass Bejan number underwent some interesting aspects, such that it behaves opposite to local Bejan number to enhance for magnetic, radiation parameter in suction/injection situations. In the suction/injection flow conditions, the entropy inception rate gets enhanced for most of the flow and thermal parameters like magnetic, radiation, convective parameters, Eckert number, buoyancy parameters of solutes 1 and 2, and temperature ratio parameter. Because of influences of assisting and opposing flow, the entropy inception rate gets slowed down by the effects of Lewis numbers of solutes 1 and 2 and Darcy number. Reynolds number has the influence assisting the entropy rate to increase.



中文翻译:

具有辐射和焦耳加热的多孔介质板上的不可逆意图三重扩散流

摘要

研究了热辐射和焦耳热对渗透板上三重扩散熵起始的影响,以及它对问题其他物理方面的影响。正在使用数学模型研究辐射和焦耳热效应。由于流体、热通量和所用盐的溶质浓度,不可逆性导致熵初发生变化。使用 Runge-Kutta-Fehlberg 方案通过射击方法对无量纲模型方程进行数值解释。由于通过板的抽吸/注入,以图表形式绘制了流量和热分布、熵起始率和努塞尔数的数值结果,并绘制了基于浓度的参数分析结果,用于局部熵起始率、局部 Bejan数字,基于助流和逆流的局部质量 Bejan 数和局部不可逆比。局部质量 Bejan 数经历了一些有趣的方面,例如它表现得与局部 Bejan 数相反,以增强吸力/注入情况下的磁性、辐射参数。在抽吸/注入流条件下,大多数流动和热参数(如磁、辐射、对流参数、埃克特数、溶质 1 和 2 的浮力参数以及温度比参数)的熵起始率得到提高。由于助流和逆流的影响,熵起始速率受到溶质1和2的路易斯数和达西数的影响而减慢。雷诺数有辅助熵率增加的影响。

更新日期:2021-11-09
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