Title :
Study of flow fields and shear stresses distributions through a Björk-Shiley prosthetic valve
Author :
Rivera, L.M. ; Bustamante, J. ; Giraldo, M. ; Hoyos, L.M.
Author_Institution :
Grupo de Dinamica Cardiovascular, Univ. Pontificia Bolivariana, Medellin, Colombia
fDate :
April 29 2013-May 4 2013
Abstract :
The method used in this paper takes advantage of the fluid dynamic characteristics of air in a wind tunnel to make an in vitro evaluation of the influence on the flow field and shear forces of a tilting disc model of prosthetic heart valve (Björk-Shiley). Measurements of air velocity fields and shear distribution calculations are reported for three static conditions of the valve opening (10°, 35° and 70°) and airflows to correlate with blood flow rates between 1.5 and 9.3 L/min. The results were consistent with those reported in the technical literature for measurements in test mechanical prosthetic valves with blood flow.
Keywords :
fluid dynamics; haemodynamics; haemorheology; prosthetics; velocity measurement; Bjork-Shiley prosthetic heart valve; air velocity field measurement; blood flow rates; flow field distribution; fluid dynamics; shear force; shear stress distribution; tilting disc model; wind tunnel; Fluid dynamics; Heart; In vitro; Prosthetics; Stress; Valves; Björk-Shiley; Mechanic Heart Valve; Wind Tunnel;
Conference_Titel :
Health Care Exchanges (PAHCE), 2013 Pan American
Conference_Location :
Medellin
Print_ISBN :
978-1-4673-6254-2
DOI :
10.1109/PAHCE.2013.6568275
