Suspension two-layered blood flow through a bell shaped stenosis in arteries

Article type: Research Article

Authors: Medhavi, Amit

Affiliations: Department of Mechanical Engineering, Kamla Nehru Institute of Technology, Sultanpur, India

Note: [] Corresponding author: Amit Medhavi, Department of Mechanical Engineering, Kamla Nehru Institute of Technology, Sulanpur-228118, India. E-mail: amitmedhavi@yahoo.co.in

Abstract: The present study concerns with the effects of the hematocrit and the peripheral layer on blood flow characteristics due to the presence of a bell shaped stenosis in arteries. To account for the hematocrit and the peripheral layer, the flowing blood has been represented by a two-layered macroscopic two-phase (i.e., a suspension of red cells in plasma) model. The expressions for the flow characteristics, namely, the velocity profiles, the flow rate, the impedance, the wall shear stress in the stenotic region and the shear stress at the stenosis throat have been derived. The quantitative effects of the hematocrit and the peripheral layer on these flow characteristics have been displayed graphically and discussed briefly.

Keywords: Hematocrit, impedance, shear stress, throat, erythrocytes, suspension

DOI: 10.3233/ABB-2012-0072

Journal: Applied Bionics and Biomechanics, vol. 10, no. 1, pp. 11-18, 2013