An analytical investigation of heat and mass transfer in MHD fractional hybrid nanofluid in the presence of Newtonian heating

Abstract

This manuscript deals with heat and mass flow in Engine Oil (EO) based copper and alumina (Cu−Al2O3) hybrid nanofluid. Flow of the fluid is initiated with the sudden oscillations of the vertical plate. Magnetic effects on free convectional flow of hybrid nanofluid are considered. Newtonian heating effects on the surface are also taken into account. Although viscous dissipation is neglected but Soret effects are investigated. These effects accelerates the heat transfer rate due to movement of fluid molecules from hot to cold surfaces. For memory effects, fractional thermal heat flux along with Caputo–Fabrizio time fractional derivative has been used to generate a generalized flow model. Laplace transform technique has been used to operate the non dimensional coupled system. Role of associated physical parameters is observed with graphical observations of the obtained solutions. It is also detected that generalized boundary conditions provide effective and innovative solutions for the oscillating flow of hybrid nanofluid which analyzed the flow characteristics in a more significant way.

Keywords

• Hybrid nanofluid
• MHD flow
• Heat and mass flow
• Fractional boundary conditions
• Caputo–Fabrizio fractional derivative