Abstract
An image-based, multi-scale, computational model for aortic hemodynamics is established with blood vessel dynamics considered. The computational model is made based on a set of medical images of the thoracic aorta and its corresponding three branches in a cardiac cycle. With the computational model, the blood flows in a dynamics vessel model and in a rigid model are numerically analyzed in terms of the influence of vessel wall deformation and movements on the blood flow. As a result, the dynamics of blood vessel is demonstrated to have a considerable influence on the flow field, especially the cross-sectional blood velocity profile throughout the aorta.
