The flow of blood through a narrow catheterized artery with an overlapping stenosis has been investigated. To account for the presence of red cells, blood has been represented by a macroscopic two-phase model (i.e., a suspension of erythrocytes in plasma). The expression for the flow characteristics-the flow rate, the impedance (resistance to flow), the wall shear stress in the stenotic region, the shear stresses at the stenosis two throats and at critical height of the stenosis, has been derived. It is found that the impedance increases with the catheter size, with the hematocrit and also with the stenosis size (height and length). A significant increase in the magnitude of the impedance and other flow characteristics occur even for a small increase in the catheter size. Variations in the magnitude of all the flow characteristics are observed to be similar in nature with respect to any parameter given.
Srivastava, V. P.; Vishnoi, Rochana; and Sinha, Poonam
Particulate Suspension Blood Flow through a Stenosed Catheterized Artery,
Applications and Applied Mathematics: An International Journal (AAM), Vol. 5,
2, Article 1.
Available at: https://digitalcommons.pvamu.edu/aam/vol5/iss2/1