Computational Vascular Fluid–Structure Interaction: Methodology and Application to Cerebral Aneurysms
A computational vascular fluid–structure interaction framework for the simulation of patient-specific cerebral aneurysm configurations is presented. A new approach for the computation of the blood vessel tissue prestress is also described. Simulations of several patient-specific models are carried out, and quantities of hemodynamic interest such as wall shear stress and wall tension are studied to examine the relevance of fluid–structure interaction modeling when compared to the rigid arterial wall assumption. We demonstrate that flexible wall modeling plays an important role in accurate prediction of patient-specific hemodynamics.
Computational Fluid–Structure Interaction: Methods and Application to a Total Cavopulmonary Connection
The Fontan procedure is a surgery that is performed on single-ventricle heart patients. We focus on a patient-specific Fontan configuration, and perform a fully coupled FSI analysis of hemodynamics and vessel wall motion. A simple approach to constructing a variable-thickness blood vessel wall using Laplace operator is proposed. Rest and exercise conditions are simulated and rigid versus flexible vessel wall simulation results are compared.