Augmented Resistive Immersed Surfaces valve model for the simulation of cardiac hemodynamics with isovolumetric phases

Alexandre This 1, 2 Ludovic Boilevin-Kayl 3 Miguel Angel Fernández 3 Jean-Frédéric Gerbeau 1
1 REO - Numerical simulation of biological flows
SU - Sorbonne Université, Inria de Paris, LJLL - Laboratoire Jacques-Louis Lions
3 COMMEDIA - COmputational Mathematics for bio-MEDIcal Applications
Inria de Paris, LJLL - Laboratoire Jacques-Louis Lions
Abstract : In order to reduce the complexity of heart hemodynamics simulations, uncoupling approaches are often considered for the modeling of the immersed valves as an alternative to complex fluid-structure interaction (FSI) models. A possible shortcoming of these simplified approaches is the difficulty to correctly capture the pressure dynamics during the isovolumetric phases. In this work, we propose an enhanced resistive immersed surfaces (RIS) model of cardiac valves which overcomes this issue. The benefits of the model are investigated and tested in blood flow simulations of the left heart.
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Submitted on : Monday, December 10, 2018 - 9:08:25 AM
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Alexandre This, Ludovic Boilevin-Kayl, Miguel Angel Fernández, Jean-Frédéric Gerbeau. Augmented Resistive Immersed Surfaces valve model for the simulation of cardiac hemodynamics with isovolumetric phases. International Journal for Numerical Methods in Biomedical Engineering, John Wiley and Sons, In press, ⟨10.1002/cnm.3223⟩. ⟨hal-01944798v2⟩

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