Arterial aneurysmal is defined as an excessive dilation of the normal diameter of an artery. Ascending aortic aneurysm is generally asymptomatic, so it is often accidentally identified during routine imaging examinations. After the aneurysm has been identified, if there is no surgical indication, the patient should be followed adequately, since arterial rupture can be fatal. The influence of blood flow on aortic remodeling is an important area of investigation. The aim of this study is to identify hemodynamic patterns in ascending aortic aneurysms that may be related to aneurysm enlargement. Each patient in the study was evaluated at two different times. A three-dimensional model of the ascending aortic aneurysm was generated for each patient from aortic angiotomography examinations. The flow field was numerically determined with a commercial software. It has been shown that the angle between the entrance of the main flow and the brachiocephalic trunk can induce an incident jet on the aortic wall, causing areas of recirculation in the posterior region of the jet, besides high values of pressure and wall shear stress. The present hemodynamics findings may be related to remodeling of the ascending aorta.