Khan Zeeshan, Rasheed Haroon Ur, Khan Ilyas, Abu-Zinadah Hanaa, Aldahlan Maha A
Department of Mathematics and Statistics, Bacha Khan University, Charsadda 24420, Pakistan.
Department of Computer Science, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan.
Materials (Basel). 2022 Jan 19;15(3):747. doi: 10.3390/ma15030747.
The influence of the chemical interaction and dynamic micropolar convective heat transfer flow of Casson fluid caused by a moving wedge immersed in a porous material was explored. The Joule heating owing to magnetized porous matrix heating was also deliberated. The mathematical formulation for mass conservation, momentum, energy, and concentration profiles was expressed in the form of partial differential equations. The dimensionless set of ordinary equations was reduced from modeled equations via a transformation framework and then solved by the RK4 built-in function in MATLAB SOFTWARE by taking a step size of Δη=0.01. The existing work was compared with the published work. The iteration procedure was stopped until all of the nodes in the η-direction met the convergence condition 10. The physical appearance of material parameters on the flow field, temperature, concentration, drag force, and Nusselt number was discussed through plots. The numerical results were obtained for limiting circumstances. The unsteadiness factor thinned the velocity boundary layer but decreased the thermal and concentration boundary layers. By increasing the Eckert number, the nondimensional temperature profile was enhanced. The novelty of the present study is that no one has numerically investigated the magnetized Casson fluid over a moving wedge in the presence of a chemical reaction and thermal radiation.
研究了浸没在多孔材料中的移动楔体引起的Casson流体的化学相互作用和动态微极对流换热流动的影响。还考虑了由于磁化多孔基体加热而产生的焦耳热。质量守恒、动量、能量和浓度分布的数学公式以偏微分方程的形式表示。通过一个变换框架将建模方程简化为无量纲常微分方程组，然后在MATLAB软件中使用步长Δη = 0.01，通过内置的RK4函数求解。将现有工作与已发表的工作进行了比较。迭代过程一直进行到η方向上的所有节点都满足收敛条件10。通过绘图讨论了材料参数对流场、温度、浓度、阻力和努塞尔数的物理影响。在极限情况下获得了数值结果。不稳定因素使速度边界层变薄，但使热边界层和浓度边界层减小。通过增加埃克特数，无量纲温度分布得到增强。本研究的新颖之处在于，没有人对存在化学反应和热辐射的移动楔体上的磁化Casson流体进行过数值研究。
