Journal
AUSTRALASIAN PHYSICAL & ENGINEERING SCIENCES IN MEDICINE
Volume 36, Issue 3, Pages 363-373Publisher
SPRINGER
DOI: 10.1007/s13246-013-0213-1
Keywords
Aortic heart valve; Bioprosthetic valve; Fluid-structure interaction (FSI) simulation; Pulsatile flow
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Experiments performed on a 19 mm diameter bioprosthetic valve were used to successfully validate the fluid-structure interaction (FSI) simulation of an aortic valve at 72 bpm. The FSI simulation was initialized via a novel approach utilizing a Doppler sonogram of the experimentally tested valve. Using this approach very close quantitative agreement (a parts per thousand currency sign12.5 %) between the numerical predictions and experimental values for several key valve performance parameters, including the peak systolic transvalvular pressure gradient, rapid valve opening time and rapid valve closing time, was obtained. The predicted valve leaflet kinematics during opening and closing were also in good agreement with the experimental measurements.
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