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- W4385323166 abstract "Abstract Fluid dynamics are of primary importance in the function of mechanical heart valves (MHV’s). Excessive shear rates can cause damage to blood components, regions of stasis can result in blood clots, and extremely high or extremely low pressures can result in structural or cavitation damage, respectively. Experimental techniques can measure pressure and velocity in the region of heart valves, but are unable to resolve the fluid dynamics immediately adjacent to the micron sized ‘squeeze-flow’ gap between the valve leaflet and housing. The current study uses computational fluid dynamics (CFD) to provide a detailed description of the flow field surrounding mitral mechanical heart valves. Experimentally measured leaflet closing velocities are used as an input to the computational model which allows for moving boundaries. The resultant flow field is used to assess the time-history of important fluid parameters such as minimum pressure and maximum shear rate through the final degrees of valve closure." @default.
- W4385323166 created "2023-07-28" @default.
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- W4385323166 date "1996-11-17" @default.
- W4385323166 modified "2023-09-23" @default.
- W4385323166 title "Experimental-Numerical Analysis of Mitral Mechanical Heart Valve Fluid Dynamics and Cavitation Potential" @default.
- W4385323166 doi "https://doi.org/10.1115/imece1996-1222" @default.
- W4385323166 hasPublicationYear "1996" @default.
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