Asymptotic study of unsteady mass transfer through a rigid artery with multiple irregular stenoses

• The study examines the transport of species in streaming blood through a rigid artery presence multi-irregular stenosis. flow is modeled by Casson constitutive equation. A linear surface reaction considered at artery. Asymptotic expressions are developed for velocity and shear stress coefficients. Extensive visualization velocity, concentration, other characteristics included various stenotic scenarios, Péclet numbers, Damköhler number. present article carrier fluid i.e., assumed to be non-Newtonian (Cassons viscoplastic model used) arterial wall rigid. robust hydrodynamic dispersion with first-order chemical on boundary multiple irregular stenosed geometries. Multiple scale solutions non dimensional value problem presented. stress. numbers. Significant modification hemodynamic computed viscoplasticity. Mean concentration also dramatically modified yield relevant disease simulation.