CFD Investigation of Pulsatile Blood Flow in Axisymmetric Stenosed Porous Arteries with Velocity Slip Effects

Blood flow plays a critical role in the development of atherosclerosis, where clots and plaques can restrict arterial blood transport. This study presents a computational investigation of unsteady, incompressible, electrically conducting, and viscous blood flow through multiple stenosed porous channels, incorporating magnetohydrodynamic (MHD) effects and slip velocity at permeable walls under time-dependent infusion or suction conditions. The governing equations are solved analytically using a perturbation method, yielding expressions for axial velocity (????), volumetric flow rate (????), and wall shear stress (WSS, ????). Numerical simulations based on the Finite Volume Method illustrate the influence of key physical parameters on ????, ???? and ???? providing insights into hemodynamic behavior and potential implications for the onset and progression of arterial diseases. To validate the analytical predictions, computational fluid dynamics (CFD) simulations were performed using ANSYS Fluent based on the finite volume method. The numerical results, including axial velocity, pressure distribution, and wall shear stress contours, showed good agreement with the analytical findings. The combined analytical and CFD investigation provides a comprehensive understanding of the hemodynamic behavior in multiple-stenosed porous arteries and highlights the influence of stenosis severity on blood flow characteristics.