Flow development and membrane deformation at three instances throughout the pulse cycle
Normally, the aorta, the main blood vessel that leads away from the heart, is about 2 cm wide. If it swells up to 6 cm then one speaks of an abdominal aortic aneurysm. Although rare, if a large aneurysm bursts, it causes huge internal bleeding and is usually fatal.
At the Royal Veterinary College in London the blood flow around the aortic wall was simulated and the instantaneous flow structure in the fluid volume, in conjunction with the degree of wall deformation was investigated utilizing Tomographic PIV and digital image correlation techniques simultaneously.
These studies, in which a FlowMaster Tomo-PIV and a StrainMaster DIC system from LaVision were used, provided valuable insight and validation data for future simulations of this complex problem.