NUMERICAL ANALYSIS OF BLOOD FLOW DYNAMICS AND WALL MECHANICS IN A COMPLIANT CAROTID BIFURCATION MODEL

혈관 유연성을 고려한 경동맥 분기부 모델 혈류역학 해석

Blood flow simulations in an idealized carotid bifurcation model with considering wall compliance were carried out to investigate the effect of wall elasticity on the wall shear stress and wall solid stress. Canonical waveforms of flowrates and pressure in the carotid arteries were imposed for the boundary conditions. Comparing to rigid wall model, generally, we could find an increased recirculation region at the carotid bulb and an overall reduced wall shear stress. Also, there was appreciable change of flowrate and pressure waveform in longitudinal direction. Solid and wall shear stress concentration occurs at the bifurcation apex.