Effects of Chemical Reaction and Jeffery Fluid on MHD Unsteady Heat and Mass Transfer Due to the Ramped Temperature

Abstract

This research work was numerically prepared to investigate the impact of Jeffery fluid and chemical reaction on unsteady (MHD) heat mass transfer free-convective past an infinite vertical plate. The research used appropriate dimensional quantities in transforming the dimensional, coupled, non-linear boundary layer partial differential equations into non-dimensional form. Finite element method (FEM) was employed to find the Numerical solution of the dimensionless governing differential equations. The expressions of velocity, temperature, concentration, skin friction, Nusselt number as well as Sherwood number were obtained and discussed using line graph. From the result obtained, it was shown that velocity profile gets enlarged with the increase of porosity parameter K, ratio of mass transfer parameter N, Eckert number Ec and Jeffery fluid parameter β, while reverse is the case for the Magnetic parameter M, and Prandtl number Pr. Temperature profile magnifies with the increase porosity parameter K, ratio of mass transfer parameter N Eckert number Ec, while reverse is the case for Magnetic parameter M, and Prandtl number Pr. Concentration profile gets lowered by increasing the value Schmidt parameter Sc and chemical reaction parameter Kr . Jeffery fluid parameter β has enhancing effect on skin friction at both y = 0and y = 1, while reverse is the case for Chemical Reaction parameterKr . Rising the Jeffery fluid parameter β reduces the Nusselt number at y = 0 and reverse is the case for chemical reaction parameterKr and opposite behavior is seen at y = 1. Finally chemical reaction parameterKr does not have any significant effects on Sherwood number at y=0 and y=1. While Schmidt number reduces the Sherwood numberSc at y=0 and intensifies it at y=1