Smart Structures and Systems

Volume 28, Number 6, 2021, pages 791-798

DOI: 10.12989/sss.2021.28.6.791

Impact in bioconvection MHD Casson nanofluid flow across Darcy-Forchheimer Medium due to nonlinear stretching surface

Humaira Sharif , Muzamal Hussain , Mohamed A. Khadimallah , Muhammad Nawaz Naeem , Hamdi Ayed , Abdelouahed Tounsi

Abstract

Current investigation aims to analyze the characteristics of magnetohydrodynamic boundary layer flow of bioconvection Casson fluid in the presence of nano-size particles over a permeable and non-linear stretchable surface. Fluid passes through the Darcy-Forchheimer permeable medium. Effect of different parameter such as Darcy-Forchheimer, porosity parameter, magnetic parameter and Brownian factor are investigated. Increasing Brownian factor leads to the rapid random movement of nanosize particles in fluid flows which shows an expansion in thermal boundary layer and enhances the nanofluid temperature more rapidly. For large values of Darcy-Forchheimer, magnetic parameter and porosity factor the velocity profile decreases. Higher values of velocity slip parameter cause decreasing trend in momentum layer with velocity profile.

Key Words

bio-convection; casson nanofluid; Darcy-Forchheimer flow; energy activation; nonlinear stretching surface; numerical solution; slip boundary conditions

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