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

Alexandre This (1) , Ludovic Boilevin-Kayl (2) , Miguel Angel Fernández (2) , Jean-Frédéric Gerbeau (3)

1 Medisys - MedisysResearch Lab
2 COMMEDIA - COmputational Mathematics for bio-MEDIcal Applications
3 Inria Siège

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.

Mots clés: One-way uncoupling; Resistive immersed surfaces; Cardiac hemodynamics; Heart hemodynamics

Domaines: Analyse numérique [math.NA]

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, 2020, 36 (3), pp.e3223. ⟨10.1002/cnm.3223⟩. ⟨hal-01944798v2⟩