Wang Jianfeng, Mustafa Zead, Siddique Imran, Ajmal Muhammad, Jaradat Mohammed M M, Rehman Saif Ur, Ali Bagh, Ali Hafiz Muhammad
College of Mechanical Engineering, Xijing University, Xi'an 710123, China.
Mathematics Program, Department of Mathematics, Statstics and Physics, College of Arts and Sciences, Qatar University, Doha P.O. Box 2713, Qatar.
Nanomaterials (Basel). 2022 May 24;12(11):1791. doi: 10.3390/nano12111791.
The two-dimensional boundary layer flow of a Prandtl nanofluid was explored in the presence of an aligned magnetic field over an inclined stretching/shrinking sheet in a non-Darcy permeable medium. To transform the PDEs of the leading equations into ODEs, a coupled boundary value problem was formed and suitable similarity functions were used. To obtain numerical answers, an efficient code for the Runge-Kutta technique with a shooting tool was constructed with a MATLAB script. This procedure is widely used for the solution of such problems as it is efficient and cost-effective with a fifth-order accuracy. The significance of immersed parameters on the velocity, temperature, concentration, and bioconvection is shown through figures. Furthermore, the physical parameters of the skin friction coefficient and the Nusselt numbers are demonstrated in tables. The declining behavior of the flow velocity against the porosity parameter Kp and the local inertia co-efficient Fr is shown, and the both parameters of the Darcy resistance and Darcy-Forchheimer resistance are responsible for slowing the fluid speed. The increasing values of the Schmidt number Sc decrease the concentration of the nano entities.
研究了在非达西渗透介质中,倾斜拉伸/收缩薄板上存在对齐磁场时普朗特纳米流体的二维边界层流动。为了将主导方程的偏微分方程转化为常微分方程,构建了一个耦合边值问题并使用了合适的相似函数。为了获得数值解,用MATLAB脚本构建了一个带有射击工具的龙格 - 库塔技术的高效代码。由于该方法高效且具有成本效益且具有五阶精度,因此广泛用于解决此类问题。通过图表展示了浸入参数对速度、温度、浓度和生物对流的影响。此外,在表格中展示了皮肤摩擦系数和努塞尔数的物理参数。展示了流速随孔隙率参数Kp和局部惯性系数Fr的下降行为,并且达西阻力和达西 - 福希海默阻力这两个参数都导致流体速度减慢。施密特数Sc的增加会降低纳米实体的浓度。