On heat transfer in the presence of nano-sized particles suspended in a magnetized rotatory flow field

Abstract

In this paper, the rotatory non-Newtonian fluid flow subject to rigid disk is debated. The Casson fluid is used as a non-Newtonian fluid model and the fluid is equipped above the rigid disk. The rotatory flow field is interacted with an applied magnetic field. The heat transfer aspects are evaluated in the presence of heat source/sink. Further, the nanosized particles are suspended in the flow regime. The physical statement is mathematically controlled in terms of partial differential equations. The numerical method named shooting method is utilized in this analysis. The involved flow controlling parameters includes the Casson fluid parameter, magnetic field parameter, heat generation parameter, heat absorption parameter, thermophoresis parameter, Brownian motion parameter and Lewis number. The impact of these parameters are examined on the Casson fluid velocities, temperature and concentration. It is noticed that the both radial and tangential velocities are supressed in the magnetized rotatory flow field as compared to non-magnetized rotatory flow field. The Casson fluid temperature enhances towards higher values of thermophoresis and heat generation parameters. The results are compared with an existing work which yields the surety of adopted computational algorithm. Keywords: Casson fluid model, Rotating rigid disk, Heat transfer, Heat generation/absorption, Nanoparticles