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Estimation of entropy optimization in Darcy-Forchheimer flow of Carreau-Yasuda fluid (non-Newtonian) with first order velocity slip
Alexandria Engineering Journal ( IF 6.2 ) Pub Date : 2020-07-24 , DOI: 10.1016/j.aej.2020.06.057
M. Ijaz Khan , Faris Alzahrani , Aatef Hobiny , Zulfiqar Ali

This research article elaborates the salient attributes of sundry variables i.e., Darcy-Forchheimer number, mixed convection parameter, porosity parameter, Weissenberg number, slip parameter, Prandtl number, activation energy parameter and chemical reaction parameter on the forced convective Darcy-forchheimer flow of non-Newtonian fluid (Carreau-Yasuda fluid) subject to stretchable and flat surface of the sheet. A general mathematical form of the entropy generation rate for Carreau-Yasuda fluid is derived in the presence of porosity irreversibility, fluid friction irreversibility, heat transfer irreversibility and Joule heating irreversibility through second law of thermodynamics. The fluid flow is saturated and magnetized through Darcy-Forchheimer porous medium and applied magnetic field. The energy equation is modeled in the presence of viscous dissipation. Series solutions are calculated by semi analytical method HAM. The behavior of pertinent flow parameters is discussed graphically. The main interest in giving to the engineering curiosity like velocity gradient and Nusselt number. The main theme of this research communication is to enhance the information of entropy optimized flow and heat and mass transport, and to inspire the investigators and analysts to scrutinize gradually innovative attributes that can take improvement on the entropy generation minimization.



中文翻译:

具有一阶速度滑移的Carreau-Yasuda流体(非牛顿)的Darcy-Forchheimer流中的熵优化估计

本文研究了非强制强迫对流Darcy-Forchheimer流的杂项变量的显着属性,即Darcy-Forchheimer数,混合对流参数,孔隙率参数,Weissenberg数,滑移参数,Prandtl数,活化能参数和化学反应参数。 -牛顿流体(Carreau-Yasuda流体)受片材可拉伸和平坦表面的影响。通过热力学第二定律,在存在孔隙不可逆性,流体摩擦不可逆性,传热不可逆性和焦耳热不可逆性的情况下,得出Carreau-Yasuda流体的熵产生率的一般数学形式。流体流通过Darcy-Forchheimer多孔介质和外加磁场饱和并磁化。在存在粘性耗散的情况下对能量方程建模。系列溶液通过半解析法HAM计算。有关流量参数的行为以图形方式讨论。对工程好奇心的主要兴趣在于速度梯度和Nusselt数。这项研究交流的主要主题是增强熵优化的流量,热量和质量传输的信息,并激发研究人员和分析人员逐步研究可以改善熵产生最小化的创新属性。

更新日期:2020-09-29
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