Regression analysis of squeezing-induced hybrid nanofluid flow in Darcy-Forchheimer porous medium  

作　　者：K.MUHAMMAD M.SARFRAZ 

机构地区：[1]Department of Humanities and Sciences,School of Electrical Engineering and Computer Science,National University of Sciences and Technology,Islamabad 44000,Pakistan [2]Department of Mathematics,Quaid-i-Azam University,Islamabad 44000,Pakistan

出　　处：《Applied Mathematics and Mechanics(English Edition)》2025年第1期193-208,共16页应用数学和力学(英文版)

摘　　要：This article presents a mathematical model addressing a scenario involving a hybrid nanofluid flow between two infinite parallel plates.One plate remains stationary,while the other moves downward at a squeezing velocity.The space between these plates contains a Darcy-Forchheimer porous medium.A mixture of water-based fluid with gold(Au)and silicon dioxide(Si O2)nanoparticles is formulated.In contrast to the conventional Fourier's heat flux equation,this study employs the Cattaneo-Christov heat flux equation.A uniform magnetic field is applied perpendicular to the flow direction,invoking magnetohydrodynamic(MHD)effects.Further,the model accounts for Joule heating,which is the heat generated when an electric current passes through the fluid.The problem is solved via NDSolve in MATHEMATICA.Numerical and statistical analyses are conducted to provide insights into the behavior of the nanomaterials between the parallel plates with respect to the flow,energy transport,and skin friction.The findings of this study have potential applications in enhancing cooling systems and optimizing thermal management strategies.It is observed that the squeezing motion generates additional pressure gradients within the fluid,which enhances the flow rate but reduces the frictional drag.Consequently,the fluid is pushed more vigorously between the plates,increasing the flow velocity.As the fluid experiences higher flow rates due to the increased squeezing effect,it spends less time in the region between the plates.The thermal relaxation,however,abruptly changes the temperature,leading to a decrease in the temperature fluctuations.

关 键 词：convective boundary condition Darcy-Forchheimer medium hybrid nanofuid Joule heating magnetohydrodynamic(MHD) numerical solution squeezing flow regression analysis 

分 类 号：O361[理学—流体力学] O175.2[理学—力学]