THE EFFECTS OF BLOOD REHEOLOGICAL ON THE FLOW THROUGH AN AXISYMMETRIC ARTERIAL STENOSIS
Main Article Content
Abstract
The prediction of the blood flow through an axisymmetric arterial stenosis is one of the most important aspects to be considered during the Atherosclrosis. Since the blood is specified as a non-Newtonian flow, therefore the effect of fluid types and effect of rheological properties of non-Newtonian fluid on the degree of stenosis have been studied. The motion equations are written in vorticity-stream function formulation and solved numerically. A comparison is made between a Newtonian and non-Newtonian fluid for blood flow at different velocities, viscosity and Reynolds number were solved also. It is found that the properties of blood must be at a certain range to preventing atheroscirasis
Article Details
How to Cite
Publication Dates
References
• Chien, S., Usami, S., Skalak, R., blood flow in small tube, in Hand book of physiology, Sec.2. The Cardiovascular System, Vol. 4, M. renkins, C.C. Michel Eds, American Physiology Society. Bethesda, PP. 217-249, (1984).
• John R. Cameron and James G. Skofronick "Medical Physics", Awiley-Interscience Publication, New York, 1987.
• Mann, D.E., Tarbell, J. M., "Flow of non-Newtonian blood analog fluids in grid curved straight artery modeles", Biorheology, Vol. 27, Pp. 7711-733, (1990).
• Obiad T. A. S., "A finite Element Method for Generatized Newtonian Flow", University of Basrah. Eng. & Technology Vol. 15, No. 5, Pp. 30-40, (1996).
• Oiknine C., "Rheology of the human blood", in Adv. Cardiovasc. Phys., Vol. 5, Part 1, PP. 1-25, Karger. Based, (1983).
• Phillips, W. M., Deutsch, S., Toward a constitutive equation for blood, Biorhelogy, Vol. 12, PP. 383-389, (1975).
• Pontrell G., "modeling the fluid-wall interaction in a blood vessel", Instituto Perle Applicazionidelcalcolo- CNR, Roma, Italy, June, (2001).
• William R. Schowalter, "Mechanics of non-Newtonian Fluid", Princeton University, U.S.A., (1978).
• Yeleswarapu, K. K., Evaluation of continuum models for Characterizing the constitutive behavior of blood, Ph. D. thesis, University of Pittsburgh, (1996).