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首页> 外文期刊>Heat transfer >Thermosolutal convective non-Newtonian radiative Casson fluid transport over a vertical plate propagated by Arrhenius kinetics with heat source/sink
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Thermosolutal convective non-Newtonian radiative Casson fluid transport over a vertical plate propagated by Arrhenius kinetics with heat source/sink

机译：热体对流非牛顿非牛顿辐射腺体流体通过Arrhenius动力学与热源/水槽传播的垂直板上

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摘要

In the current study, a mathematical formulation is developed by combining the non-Newtonian (Casson) fluid model to simulate the thermosolutal free convection radiative flow over a vertical surface. The current flow model is formulated with a heat sink/source and radiation driven by Arrhenius kinetics. The basic flow equations are transmuted into a nondimensional form via similarity transformations for which numerical simulations are performed utilizing the Runge-Kutta-Fehlberg method with shooting technique. The results obtained for velocity, energy, and species mass concerning various flow parameters are presented graphically. Computed results for skin friction, Nusselt number, and Sherwood number are tabulated. The results have been verified for limited cases by comparing with various investigations, revealing excellent accuracy. The detailed geometry reveals that an increase in the activation energy enhances the flow velocity and heat transport in the Casson fluid system due to exothermic heat reaction. With the increase of the Frank-Kamenetskii term, there is a substantial rise in temperature distribution and a decrease in concentration profiles due to high Arrhenius exothermic process, which revealed that the presence of Arrhenius kinetics is more effective to improve heat transportation phenomenon. Enhancement of the heat source/sink term completely boosts heat distribution. Rise in Radiation parameter, temperature field increases by reducing heat dissipation to the ambient.
机译：在目前的研究中，通过组合非牛顿（Casson）流体模型来开发数学制剂，以模拟垂直表面上的热致沉降型对流辐射流动。电流模型配制，散热器/源和由Arrhenius动力学驱动的辐射。基本流量方程通过相似性转换被传送到非潜力形式，其利用具有拍摄技术的径流-Kutta-Fehlberg方法来执行数值模拟。针对各种流动参数的速度，能量和物种质量获得的结果以图形方式呈现。表现出皮肤摩擦，露珠数和舍伍德数的计算结果。通过与各种调查进行比较，结果已经核实了有限的病例，揭示了优异的准确性。详细几何形状显示，由于放热的热反应，激活能量的增加增强了Casson流体系统中的流速和热传输。随着Frank-Kamenetskii期限的增加，温度分布的实质性分布和由于高的Arrhenius放热过程而降低浓度型材，这表明Arrhenius动力学的存在更有效地改善热量运输现象。热源/下沉项的增强完全提高了热分布。辐射参数上升，通过将散热降低到环境温度来增加温度场。

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  • 来源
    《Heat transfer》 |2021年第3期|2829-2848|共20页
  • 作者

    Govind R. Rajput; MD. Shamshuddin; Sulyman O. Salawu;

  • 作者单位

    Department of Applied Mathematics Mukesh Patel School of Technology Management and Engineering SVKMs NMIMS Shirpur Maharastra India;

    Department of Mathematics Vaagdevi College of Engineering (Autonomous) Bollikunta Warangal Telangana India;

    Department of Physical Science College of Pure and Applied Sciences Landmark University Omu-Aran Nigeria;

  • 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

    Arrhenius kinetics; Casson fluid; heat source; sink; RKFM; thermal radiation;

    机译：arrhenius动力学;鲫鱼;热源;下沉;rkfm;热辐射;

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