TITLE:
The Effects of Post-Stenotic Dilatations on the Flow of Couple Stress Fluid through Stenosed Arteries
AUTHORS:
K. Maruthi Prasad, T. Sudha, M. V. Phanikumari
KEYWORDS:
Stenosis, Dilatation, Wall Shear Stress, Resistance to the Flow, Couple Stress Fluid Parameter
JOURNAL NAME:
American Journal of Computational Mathematics,
Vol.6 No.4,
December
29,
2016
ABSTRACT: The flow
of incompressible couple stress fluid in a circular tube with stenosis and
dilatations has been investigated. The stenosis was assumed to be axially
symmetric and mild. The flow equations have been linearized and the expressions
for the resistance to the flow, velocity, pressure drop, wall shear stress have
been derived. The effects of various parameters on these flow variables have
been investigated. It is found that the resistance to the flow and pressure
drop increase with height of the stenosis and decrease with post stenotic
dilatation. Pressure drop decreases with couple stress fluid parameter for both
stenosis and post stenotic dilatation. Further, the wall shear stress increases
with height of the stenosis and couple stress parameter but decreases with post
stenotic dilatation and couple stress fluid parameter.