不可逆分析法研究受磁偶极子影响的Ree-Eyring纳米流体流动多相催化作用  

Insight into heterogeneous catalysis in a Ree-Eyring nanofluid flow influenced by a magnetic dipole with irreversibility analysis

作　　者：Seemab BASHIR Muhammad RAMZAN Seifedine KADRY C Ahamed SALEEL 

机构地区：[1]Department of Mathematics,Air University,Islamabad,44000,Pakistan [2]Department of Computer Science,Bahria University,Islamabad,44000,Pakistan [3]Department of Mathematics and Computer Science,Noroff University College,Kristiansand,Norway [4]Artificial Intelligence Research Center(AIRC),Ajman University,Ajman,346,United Arab Emirates [5]Department of Electrical and Computer Engineering,Lebanese American University,Byblos,Lebanon [6]Department of Mechanical Engineering,College of Engineering,King Khalid University,Asir-Abha,61421,Saudi Arabia

出　　处：《Journal of Central South University》2023年第7期2324-2339,共16页中南大学学报（英文版）

摘　　要：Ree-Eyring流体是一种非牛顿流体,具有屈服应力和剪切稀化的特点,比如乳剂、浆体和聚合物溶液。根据Ree-Eyring流体的特性,通过考虑不均匀的产热/吸收效应和黏性耗散效应,以及分析传热现象来研究磁偶极子作用下表面拉伸纳米流体的流动行为。所建立模型考虑了对流条件下边界表面的熵产生,将偏微分方程组(PDEs)充分变换转换为耦合常微分方程组(ODEs),采用MATLAB bvp4c法进行数值计算,并以图表形式显示计算结果。结果表明,随着Brinkman数的变化,不可逆性产生率激增。此外,当热泳参数最小化时,边界附近的温度降低,而在远离边界处温度上升。表面催化参数减弱了溶质的分布,模型得到了验证。The Ree-Eyring fluid is a type of non-Newtonian fluid with interesting characteristics of yield stress and shear thinning.Examples include emulsions,slurries,and polymer solutions.Keeping in view such amazing attributes of Ree-Eyring fluid,the aim of this analysis is to deliberate the flow of electrically conducting Ree-Eyring nanofluid due to a stretched surface under the impact of the magnetic dipole with surface-catalyzed reaction.Non-uniform heat generation/absorption and viscous dissipation effects are considered to analyze the heat transport phenomenon.The uniqueness of the envisaged model is enhanced by studying the entropy generation analysis with convective conditions at the surface of the boundary.Adequate transformations are employed to transform the system of partial differential equations(PDEs)into coupled ordinary differential equations(ODEs).An effective MATLAB bvp4c methodology is adopted for the numerical computations.Several graphs and numerically calculated results in tabular form are displayed.The outcomes revealed that the rate of irreversibility generation upsurges for the varied values of the Brinkman number.Also,upon minimizing the thermophoretic parameter,the temperature drops near the boundary whereas it upsurges far from the boundary.Surface catalysis parameter decreases the solutal profile.The endorsement of the foreseen model is also added to this study.

关 键 词：Ree-Eyring纳米流体 磁偶极子 多相催化 熵产生 

分 类 号：TB383.1[一般工业技术—材料科学与工程]