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Exploration of activation energy and binary chemical reaction effects on nano Casson fluid flow with thermal and exponential space-based heat source

机译:探索热和指数空基热源对纳米卡森流体流动的活化能和二元化学反应效应

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Purpose - The purpose of this paper is to explore the effects of binary chemical reaction and activation energy on nano Casson liquid flow past a stretched plate with non-linear radiative heat, and also, the effect of a novel exponential space-dependent heat source (ESHS) aspect along with thermal-dependent heat source (THS) effect in the analysis of heat transfer in nanofluid. Comparative analysis is carried out between the flows with linear radiative heat process and non-linear radiative heat process. Design/methodology/approach - A similarity transformation technique is utilised to access the ODEs from the governed PDEs. The manipulation of subsequent non-linear equations is carried out by a well-known numerical approach called Runge-Kutta-Fehlberg scheme. Obtained solutions are briefly discussed with the help of graphical and tabular illustrations. Findings - The effects of various physical parameters on temperature, nanoparticles volume fraction and velocity fields within the boundary layer are discussed for two different flow situations, namely, flow with linear radiative heat and flow with non-linear radiative heat. It is found that an irregular heat source/sink (ESHS and THS) and non-linear solar radiation play a vital role in the enhancement of the temperature distributions. Originality/value - The problem is relatively original to study the effects of activation energy and binary chemical reaction along with a novel exponential space-based heat source on laminar boundary flow past a stretched plate in the presence of non-linear Rosseland radiative heat.
机译:目的-本文的目的是探讨二元化学反应和活化能对纳米卡森液体流经非线性辐射热通过拉伸板的影响,以及新型指数依赖空间的热源的作用( ESHS)方面以及热依赖性热源(THS)效应,用于分析纳米流体中的传热。对具有线性辐射热过程和非线性辐射热过程的流进行了比较分析。设计/方法/方法-利用相似性转换技术从受管PDE访问ODE。通过称为Runge-Kutta-Fehlberg方案的众所周知的数值方法来执行随后的非线性方程式。借助图形和表格插图简要讨论了获得的解决方案。研究结果-针对两种不同的流动情况,即具有线性辐射热的流动和具有非线性辐射热的流动,讨论了各种物理参数对边界层内的温度,纳米颗粒体积分数和速度场的影响。发现不规则的热源/散热器(ESHS和THS)和非线性的太阳辐射在增强温度分布中起着至关重要的作用。原创性/价值-这个问题是相对原始的,用于研究活化能和二元化学反应以及新型的基于指数的基于空间的热源对存在非线性Rosseland辐射热的流经拉伸板的层流边界流的影响。

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