MHD stagnation point flow of viscous nanofluid over a curved surface

Abstract

In this article, we have examined the steady 2D magnetohydrodynamic (MHD) stagnation point flow of an incompressible viscous nanofluid over a curved surface based on mass suction. Alumina (Al2O3) is taken to be a nanoparticle while ethylene glycol is considered a base fluid. The developed flow and heat equations are changed into coupled ordinary differential equations through dimensionless variables, which are resolved numerically via the bvp4c scheme in MATLAB. The graphical results for temperature, velocity, Nusselt number and skin friction have been obtained under the effect of various parameters, such as suction parameter S, Hartmann number M, curvature parameter K and nanoparticle volume fraction ℓ. From these results, it is noticed that S, M and ℓ act directly on the skin friction and heat transfer rate, although the reverse effect has been shown by K. Furthermore, increasing K leads to lower fluid velocity and higher temperature field.