Talk by Karel Tůma

The next seminar “Modelling of materials – theory, model reduction and efficient numerical methods” will take place this Wednesday (Oct 20, 2021) from 9:00 till 10:00 in K3. The talk will be given by Karel Tůma. Please see the details below.

Speaker: Karel Tůma
Title: Three-dimensional blood flows in the aortic root

Abstract: Our long-lasting goal is to study how various effects influence the flow of blood in the aortic root. This lecture reports about our current investigation.
The aortic root is a complex structure that contains the aortic valve and it is the origin of the aorta. We aim to verify the hypothesis that the blood slips on the wall of the aorta. In this talk, we present a systematic study to verify the robustness and reliability of implemented three-dimensional finite element code. We start with the simulation of Poiseuille flow in the straight tube for which the analytic solution is known for different slip conditions. Next, we extend the tube with the sinusoidal profile for which the analytical solution is not known anymore. To check that our 3D code works fine, we compare it with the finite element solution of the axi-symmetric 2D-like problem that is computed with a very fine resolution.