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Performance analysis of ventricular assist devices using finite element flow simulation
Author(s) -
Behr M.,
Arora D.,
Nosé Y.,
Motomura T.
Publication year - 2004
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.796
Subject(s) - impeller , inflow , finite element method , outflow , mechanics , slip factor , flow (mathematics) , rotational symmetry , mechanical engineering , slip (aerodynamics) , computer science , engineering , simulation , structural engineering , physics , aerospace engineering , meteorology
Numerical simulation plays an increasingly important role in the design of medical devices in general, and ventricular assist devices in particular. Modelling of flow in blood pumps has the potential to shorten the design cycle and give the designers important insights into causes of blood damage and suboptimal performance. We present a set of flow simulations designed to reproduce previously obtained experimental data relating flow volume generated by the pump to the pressure head imposed between the outflow and inflow cannulas. These performance curves are obtained using a stabilized space–time finite element formulation of the Navier–Stokes equations, with a shear‐slip mesh update used to accommodate the movement of the impeller with respect to non‐axisymmetric housing. Copyright © 2004 John Wiley & Sons, Ltd.