Abstract
This paper presents CFD results of steady and pulsatile flow behavior in a cerebral aneurysm and their comparison with in vitro measurements taken with a stereoscopic PIV technique and a miniature pressure probe. A commercial CFD code based on FVM is utilized with a computational grid system that is defined from a 3-D shape of a patient's cerebral aneurysm. The aneurysm considered here has experienced the rapture in the tip of the main body of the aneurysm. Both a long entrance region and a fine mesh near the aneurysm wall are defined in the computational grid system in order to permit a direct comparison with the measurement. The CFD results obtained thus for steady and pulsatile flows show good agreement with the measurements. The CFD results are analyzed and discussed in detail to reveal the flow behaviors that are responsible for the wall shear stress and the wall pressure inside the aneurysm.
