Mixed convective heat transfer analysis of MHD fluid flowing through an electrically conducting and non-conducting walls of a vertical micro-channel considering radiation effect

Abstract

In this study, the flow of mixed convective magnetohydrodynamic (MHD) fluid flow through vertical porous channel with radiation effect is considered. The mixed convective MHD fluid through the vertical micro-channel with electrically conducting and non-conducting walls is formulated by momentum and energy equations. Key rheological parameters effects such as magnetic Prandtl number, pressure gradient, Reynolds number and radiation parameter are examined on heat and mass transfer. Observation from graphical representation of results illustrates increasing pressure term leads to increase in velocity distribution whose effect is maximum towards the center of the flow channel while increasing radiation parameter shows decrease in temperature distribution but effect is significant towards the electrically conducting wall. Comparison of obtained results with fourth order Runge Kutta numerical solution proves to be in satisfactory agreement. This paper provides insights to further study of mixed convective MHD flows in applications such as molten salt and molten metal MHD pumps.