Cross-Diffusion Effects on an MHD Williamson Nanofluid Flow Past a Nonlinear Stretching Sheet Immersed in a Permeable Medium  

作　　者：R.Madan Kumar R.Srinivasa Raju F.Mebarek-Oudina M.Anil Kumar V.K.Narla 

机构地区：[1]Department of Mathematics,RGUKT,R.K.Valley,Kadapa(D),Andhra Pradesh,516329,India [2]Department of Mathematics,Gitam University,Hyderabad,502329,India [3]Department of Physics,Faculty of Sciences,University of 20 Aout 1955-Skikda,Road El-Hadaeik,B.P.26,Skikda,21000,Algeria [4]Department of Mathematics,Anurag University,Hyderabad,Telangana,500088,India

出　　处：《Frontiers in Heat and Mass Transfer》2024年第1期15-34,共20页热量和质量传递前沿（英文）

摘　　要：The primary aim of this research endeavor is to examine the characteristics of magnetohydrodynamicWilliamson nanofluid flow past a nonlinear stretching surface that is immersed in a permeable medium.In the current analysis,the impacts of Soret and Dufour(cross-diffusion effects)have been attentively taken into consideration.Using appropriate similarity variable transformations,the governing nonlinear partial differential equations were altered into nonlinear ordinary differential equations and then solved numerically using the Runge Kutta Fehlberg-45 method along with the shooting technique.Numerical simulations were then perceived to show the consequence of various physical parameters on the plots of velocity,temperature,and concentration of the nanofluid flow.Boosting the magnetic,Williamson,porosity,and stretching sheet index parameters,the velocity of the fluid flow decreases.The temperature is enhanced as theWilliamson and Brownian motion parameters upsurge,but it decreases as the Prandtl,thermophoresis,stretching sheet index,and Dufour parameters escalate.The concentration distribution decreases as the thermophoresis andmagnetic parameters upsurge,but it escalates as the Soret,Schmidt,Brownian motion,and stretching sheet index parameters increase.Skin friction coefficient boosted as the stretching sheet index and magnetic parameters enhanced against the Williamson parameter.The findings from this study have been contrasted with earlier findings on local Nusselt numbers,which show substantial support and endorse the existing approach’s validity.The numerical values of the local Sherwood number gradually increase as the Schmidt,Soret,stretching sheet index,and thermophoresis parameters are upsurged.

关 键 词：Magnetohydrodynamics(MHD) Williamson nanofluid Soret&Dufour effects 

分 类 号：O17[理学—数学]