Description AC7-04
A pulsatile 3D flow relevant to thoracic hemodynamics: CFD - 4D MRI comparison
Application Challenge AC7-04 © copyright ERCOFTAC 2021
Description
Introduction
The objective of the current Application Challenge is to provide a well-controlled environment and procedure to enable comparison between CFD and 4D Flow MRI. The experiment is designed to remove most classical sources of uncertainties inherent to the in vivo MRI such as moving deformable walls or undefined blood properties. The experimental MRI setup is shown on figure 1, where the phantom presents topological complexities analogous to the cardiovascular system (Fig. 2). Large Eddy Simulation (LES) has been conducted on the same geometry. Both the experiment and the simulation have been performed under a sinusoidal pulsatile flow, with flow conditions in the laminar-turbulent transition regime similar to what one can found in the cardiovascular system.
Figure 1: Schematic experimental setup
The methods described in this Application Challenge are mainly adopted from Puiseux et al. (2019) [2].
Relevance to Industrial Sector
Design or Assessment Parameters
Flow Domain Geometry
Flow Physics and Fluid Dynamics Data
Contributed by: Morgane Garreau — University of Montpellier, France
© copyright ERCOFTAC 2021