Abstract
Numerical simulation in aortic arch aneurysm under pulsatile blood flow is carried out to calculate wall shear stress and blood pressure on vessel's wall. At diastole phase, blood flow rate and wall shear stress increase in the model of aneurysm at lesser curvature. In contrast at systole phase, blood pressure and wall shear stress increase in the model of aneurysm at greater curvature and the model of fusiform aneurysm.