AN APPROACH ON FLUID-STRUCTURE INTERACTION FOR THE PREDICTION OF BLOOD FLOW IN ANEURYSMS WITH VARIOUS SHAPES

초록

Recently, the rapid evolution of numerical methodologies for CFD and structural analyses has made it possible to predict the arterial hemodynamics closely related to vascular disease. In the present study, a framework for fluid-structure interaction (PSI) analysis was developed to accurately predict the arterial hemodynamics. The numerical results from the FSI analysis of the hemodynamics inside aneurysms of various shapes were compared to the results without FSI analysis. The results showed that FSI analysis needs to be performed in order to accurately predict the blood flow affected by the wall motion of compliant arteries. PSI analysis is essential to predict the hemodynamics in a saccular aneurysm because the arterial wall's movement, which is a result of the variation of blood pressure in the aneurysmal sac, mainly produces the blood flow to a saccular aneurysm.

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