Differential Equations and Numerical Analysis Seminar - 11/12/2013

Wednesday, 11 December 2013, 2:00 p.m.

Lecturer: Adélia Sequeira  (CMAT-IST)

Title: "3D Fluid-Structure Interaction Problems in Hemodynamics".

Local: Room 1.5, Edifício VII
Faculdade de Ciências e Tecnologia, Quinta da Torre, Caparica

Abstract: Blood flow in arteries is characterized by pulse pressure waves due to the interaction with the vessel walls. To avoid spurious reflections derived from the truncation of the computational domain, we consider the coupling between 3D and reduced 1D fluid-structure interaction (FSI) models to describe blood  flow in compliant vessels. Absorbing boundary conditions obtained from the 1D model are imposed directly on the outflow sections of the 3D FSI model, and numerical results comparing different absorbing conditions in idealized and realistic vessels are presented. Numerical tests to illustrate the coupling procedure and the hemodynamic effects of the absorbing boundary conditions are also provided. 

This is a joint work with J. Janela and A. Moura.