The aim of this paper is to study the consequences of multiple fusiform aneurysms with three different dilations 0.1, 0.25, 0.5 in blood vessels by using computational fluid dynamic analysis. A three dimensional unsteady incompressible viscous flow dynamics in an arterial vessel with two axisymmetric aneurysms in series using finite volume method has been investigated. Hemodynamics factors such as velocity, pressure and streamline pattern of blood flow are evaluated. Numerical simulation is performed using the CFD softwares Fluent and Gambit. High pressure and low velocity are observed in the region of aneurysms. This is an indication to the interruption of blood flow. These techniques based on computer flow study are important for understanding the relationship between hemodynamic parameters and risk of rupture.

computational fluid dynamics, hemodynamics, multiple fusiform aneurysm, numerical simulation, streamlines.