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Numerical simulation for MHD Darcy–Forchheimer three-dimensional stagnation point flow by a rotating disk with activation energy and partial slip
Applied Nanoscience ( IF 3.869 ) Pub Date : 2020-07-24 , DOI: 10.1007/s13204-020-01517-5
M. Ijaz Khan , Waqar A. Khan , M. Waqas , Seifedine Kadry , Yu-Ming Chu , Zulfiqar Ali

The Buongiorno nanofluid model is utilized to scrutinize the impacts of important slip mechanisms, i.e., thermophoresis diffusion and Brownian momentum on the Darcy–Forchheimer three-dimensional stagnation point flow of viscous fluid towards a flat surface with multi slips (velocity, temperature, concentration). The thermo-physical and experimental correlations for the thermal conductivity, density and dynamic viscosity of nanoliquid are implemented in the governing expressions. Nanoliquids are mostly utilized in the continuous phase liquid to enhance their thermal characteristics as coolants in transport equipment, i.e., electronic cooling system, heat exchangers and radiators. Heat transport subject to flat plate has been examined by numerous analyst. Appropriate similarity transformations which is derived from Lie point symmetry is incorporated to alter the system of governing equation into ordinary one. The transformed system is solved numerically through bvp4v (built-in-shooting) technique. The influences of important flow parameters on the dimensionless temperature, velocity, Nusselt number, concentration, wall shear stress and Sherwood number are plotted graphically and tabular form.



中文翻译:

具有激活能和部分滑移的旋转圆盘对MHD Darcy–Forchheimer三维停滞点流的数值模拟

Buongiorno纳米流体模型用于仔细研究重要滑移机制的影响,即热泳扩散和布朗动量对粘性流体向多滑动平面(速度,温度,浓度)的Darcy-Forchheimer三维滞流点流动的影响。在控制表达式中实现了纳米液体的热导率,密度和动态粘度的热物理和实验相关性。纳米液体主要用于连续相液体中,以增强其热特性,作为运输设备中的冷却剂,例如电子冷却系统,热交换器和散热器。受热分析的平板机已经被众多分析师检验。引入源自李点对称性的适当相似性变换,以将控制方程组变为普通方程组。转换后的系统通过bvp4v(内置射击)技术进行数值求解。重要的流动参数对无量纲温度,速度,努塞尔数,浓度,壁切应力和舍伍德数的影响以图形和表格形式绘制。

更新日期:2020-07-24
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