From The FEniCS project

Blood flow simulation in a patient specific geometry with an aneurysm. The aim was to evaluate the effects of a by-pass operation. The blood vessel has been segmented using Vascular Modeling Toolkit [1]. The incompressible Navier-Stokes equations have been solved using DOLFIN. Contributed by Kristian Valen-Sendstad [2]. Image:Cow screenshot.png