This research investigates the impact of magnetic forces and various shaped nanoparticles on blood flow in diverging tapered stenosed arteries, using a blood flow model. The study focuses on metallic nanoparticles of different shapes within a water-based fluid medium, an area that has been largely unexplored. To simulate blood flow dynamics, a radially symmetric yet axially non-symmetric stenosis configuration is employed, providing insights into complex flow patterns in diseased arteries. The research analyzes the symmetrical distribution of wall shearing stresses and their correlation with resistive impedance, and examines the progressive rise of these quantities with stenosis severity. Numerical simulations evaluate flow parameters such as velocity, temperature, resistance impedance, boundary shear stress, and shearing stress at the stenosis throat, offering a comprehensive understanding of the effects of nanoparticle shape and magnetic forces on blood flow characteristics. The study also explores the graphical representation of various flow quantities across a spectrum of relevant parameters for Cu-blood systems, gaining insights into the intricate interplay between arterial geometry, fluid rheology, and nanoparticle behavior.This research investigates the impact of magnetic forces and various shaped nanoparticles on blood flow in diverging tapered stenosed arteries, using a blood flow model. The study focuses on metallic nanoparticles of different shapes within a water-based fluid medium, an area that has been largely unexplored. To simulate blood flow dynamics, a radially symmetric yet axially non-symmetric stenosis configuration is employed, providing insights into complex flow patterns in diseased arteries. The research analyzes the symmetrical distribution of wall shearing stresses and their correlation with resistive impedance, and examines the progressive rise of these quantities with stenosis severity. Numerical simulations evaluate flow parameters such as velocity, temperature, resistance impedance, boundary shear stress, and shearing stress at the stenosis throat, offering a comprehensive understanding of the effects of nanoparticle shape and magnetic forces on blood flow characteristics. The study also explores the graphical representation of various flow quantities across a spectrum of relevant parameters for Cu-blood systems, gaining insights into the intricate interplay between arterial geometry, fluid rheology, and nanoparticle behavior.