In recent cardiovascular studies, the stress phase angle (SPA) has been used as a parameter to identify location for various diseases such as atherosclerosis and aneurysm. This angle represents the phase interaction between the wall shear stress (WSS) and the elastic strain intensity (ESI). It reflects the seriousness of WSS which is a direct measure of these diseases. In this work, a 3D model pulsatile flow in an artery is developed and used to calculate the SPA. Three different models are simulated and the changes in the SPA are observed.

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