ABSTRACT The investigation into blood flow through stenotic arteries holds significant importance in the realm of mathematical fluid dynamics, particularly in the field of biological medicine. In this study, the focus is on understanding the impact of human blood circulation on a stenosed vessel. The chosen model for human blood is a micropolar liquid. The objective of this research is to scrutinize the significance of mixed convection in micropolar fluid as it flows through a stenosed artery. To computationally model the concentration and temperature distributions induced by blood flow via MATLAB, the structural equations and boundaries are reduced into non‐dimensional notation by similarity transformations. The low Reynolds number and long wavelength techniques are used to simplify partial differential equations. The Crank–Nicolson method is employed to handle the evaluation of boundary conditions and governing equations for fluid flow. A specific geometry is assumed to understand the impact of the stenosis configuration. The study contains a graphical analysis of the influence of various physical parameters on the axial velocity graph, as well as the heat and mass fields. These variables include the coupling number, micropolar parameter, Prandtl number, Schmidt number, thermal Grashof number, and solutal Grashof number. The key findings include the observation that velocity increases with enhancements in the concentration number. Additionally, an increase in the coupling parameter and the thermal Grashof number within the confined region leads to a reduction in axial velocity. The temperature distribution experiences a rise with an increased Prandtl number. Notably, the concentration profile remains unchanged with an increase in Schmidt number values.
Salahuddin et al. (Mon,) studied this question.