Influence of magnetohydrodynamics on casson nanofluid heat transfer over a radiating stretching surface

Abstract

Background and Objectives: This study is made to analyze the radiation effect in the flow of magnetohydrodynamic (MHD) Casson nanofluid when subjected to a magnetic field. The velocity slip over inclined nonlinear stretching surface in Forchheimer porous medium is taken into account. The Blood is considered as a base fluid and single-walled carbon nanotubes (SWCNTs) as nanoparticles in this study. The basic purpose of this study is to analyze the heat transfer and MHD effects on the Casson nanofluid which is nowhere found in previous studies and this laydown a pathway for the future researches. Significance: Growing potential of Casson fluid by considering its applications to flow and energy transfer, the current analysis can be of great significance where working fluid used is non-Newtonian in nature. Methodology: The mathematical model consisting of flow and heat equations is solved by using the Runge–Kutta fourth-order method along with shooting method in MATLAB using bvp4c solver. Results: Graphical outputs of velocity and temperature fields are obtained for various values of magnetic parameter M, Prandtl number [Formula: see text], Forchheimer parameter [Formula: see text], permeability parameter [Formula: see text] and concentration parameter [Formula: see text]. The numerical findings of coefficient of local skin friction and local Nusselt number are also tabulated. Casson fluid parameter in an increasing order impacted decreasingly on the skin friction of the fluid while magnetic number upgrade it along the sheet. The stability of fluid flow is effected by volumetric ratio of SWCNT’s nanoparticles. The boundary line temperature increases as radiation parameter rises.