Abstract
The current study reviews the effect of blood flow characteristics through stenosis during angioplasty, considering that blood is a steady, Newtonian fluid with a steady and incompressible, these vessels are purified by the use of catheters. The engineering of the arterial part is a tube with overlapping stenosis in the lumen of the arteries of the patient, causing a defect in the cardiovascular system, was built Mathematically for the movement of physiological fluid representing blood in the gap between two eccentric tubes (eccentric - ring flows), where the inlet tube is a uniform solid representing the moving catheter while the other is a tapered cylindrical tube representing the artery with intervening stenosis. The problem was analyzed to find the axial velocity approximate solution.
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