Computational fluid dynamics analysis of a maglev centrifugal left ventricular assist device |
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Authors: | Burgreen Greg W Loree Howard M Bourque Kevin Dague Charles Poirier Victor L Farrar David Hampton Edward Wu Z Jon Gempp Thomas M Schöb Reto |
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Affiliation: | Engineering Applied Sciences Inc, Export, PA, USA. burgreen@erc.msstate.edu |
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Abstract: | The fluid dynamics of the Thoratec HeartMate III (Thoratec Corp., Pleasanton, CA, U.S.A.) left ventricular assist device are analyzed over a range of physiological operating conditions. The HeartMate III is a centrifugal flow pump with a magnetically suspended rotor. The complete pump was analyzed using computational fluid dynamics (CFD) analysis and experimental particle imaging flow visualization (PIFV). A comparison of CFD predictions to experimental imaging shows good agreement. Both CFD and experimental PIFV confirmed well-behaved flow fields in the main components of the HeartMate III pump: inlet, volute, and outlet. The HeartMate III is shown to exhibit clean flow features and good surface washing across its entire operating range. |
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Keywords: | Left ventricular assist device Computational fluid dynamics Centrifugal flow Magnetically suspended rotor |
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