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

作者:

Highlights:

• The study examines the transport of species in streaming blood through a rigid artery in the presence of multi-irregular stenosis.

• The flow of blood is modeled by Casson constitutive equation.

• A linear surface reaction is considered at the blood artery.

• Asymptotic expressions are developed for velocity and shear stress and transport coefficients.

• Extensive visualization of velocity, concentration, and other flow characteristics is included for various stenotic scenarios, Péclet numbers, and Damköhler number.

摘要

•The study examines the transport of species in streaming blood through a rigid artery in the presence of multi-irregular stenosis.•The flow of blood is modeled by Casson constitutive equation.•A linear surface reaction is considered at the blood artery.•Asymptotic expressions are developed for velocity and shear stress and transport coefficients.•Extensive visualization of velocity, concentration, and other flow characteristics is included for various stenotic scenarios, Péclet numbers, and Damköhler number.

论文关键词:Multiple scale analysis,Arterial stenosis,Damköhler number,Reaction,Casson viscoplastic model,Hemo-rheology,Axisymmetric flow,Péclet number

论文评审过程:Received 25 November 2020, Revised 28 April 2021, Accepted 26 June 2021, Available online 11 July 2021, Version of Record 11 July 2021.

论文官网地址:https://doi.org/10.1016/j.amc.2021.126485