Oral: Electromagnetohydrodynamic flow and thermal analysis of double stenotic microchannel

Stenosis is a cardiovascular condition characterized by the narrowing of arterial lumen, which affects the flow of blood. It is considered one of the primary diseases of the cardiovascular system and has emerged as a prominent cause of mortality worldwide. The aim of this study is to utilize numerical methods to investigate the flow and heat transfer characteristics of blood through a vessel containing multiple stenosis under the effects of externally applied magnetic and electric fields. Furthermore, the study focuses on comparing the flow patterns and heat transfer characteristics between the stenotic segments and the normal segments of the channel. Blood is assumed to behave like a Newtonian fluid. A comprehensive mathematical and numerical model is built to accurately describe the flow and thermal features in electro-magnetohydrodynamic (EMHD) flow of blood of a diseased artery by incorporating the Poisson-Boltzmann equation, the momentum equation, and the energy equation. The key aspects of the EMHD flow and thermal characteristics in the stenotic channel are emphasized by examining the changes in the various non-dimensional parameters for velocity profile, temperature profile, wall shear stress (WSS), and the Nusselt number. The results obtained for various parameter values in the problem indicate that the flow is significantly affected by the magnetic field, electric field, wall zeta potential, and electric double layer thickness.