Mathematical model of MHD unsteady flow induced by a stretching surface embedded in a rotating Casson fluid with thermal radiation

摘要

A mathematical model for the time dependent flow of a Casson fluid due to a stretching sheet embedded in a rotating fluid subject to a uniform magnetic field, with thermal radiation, viscous dissipation and chemical reaction of nth order is investigated. The equations governing the flow are formulated and solved numerically by introducing suitable similarity transformations. The computational and graphical results reveal that the velocity components are decreasing functions of the Casson parameter in the vicinity of the wall. The rotation parameter is found to prevent the back flow in the x-direction. The Lorentz force is found to decelerate the x-component of velocity while it accelerates in the y-direction. The thermal boundary layers are enlarged by the Eckert number, Lorentz force and radiative heat transfer. The mass transfer rate is found to be increased by the rotation and Casson parameters.