Abstract
This paper studies variations of blood pressure acting onto blood vessel wall as well as dynamics of the blood-flow velocity in the pathological blood vessels by evaluating blood- flow turbulence and taking into account that blood is a non-Newtonian fluid. Finite element method was used to construct models of healthy blood vessels, aneurysm, atherosclerosis and deflections. It was determined that local pressure exerted onto blood vessels walls and blood flow velocity variation depend on size and type of the pathology. Local blood pressure in the pathology location could be up to 7 times higher in comparison to systolic blood pressure. It is established that the most dangerous pathology type is atherosclerosis. Obtained research results could be applied in evaluation of human efficiency.
About this article
Received
February 10, 2011
Accepted
May 15, 2011
Published
June 30, 2011
Keywords
local pressure
elastic blood vessels
blood flow
pathology
turbulence
velocity
non-Newtonian fluid
pathology type
Copyright © 2011 Vibroengineering
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