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Carotid artery bifurcations are prone to plaque formation or stenosis due to their complex geometry. In this study, the streamline patterns and wall shear stress at the carotid artery bifurcation have been investigated using a commercial CFD code. The effect of stenosis on the blood flow patterns has been observed at mild (25%), moderate (50%), and severe (75%) stenoses. The steady-state continuity and Navier–Stokes momentum equations with constant blood properties are considered for the numerical analysis. Systole and diastole phases are defined by Reynolds numbers 145 and 40, respectively. The results show increased blood velocity and arterial wall shear stress at the stenosed region.

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Investigation of Streamline Patterns and Wall Shear Stress Distributions at Different Stages of Carotid Artery Stenosis

  • 会议论文

  • 发表日期：

    2026年

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  • Md Yeashir Arafat,
  • Ayesha Siddika,
  • Tasnova Tamanna Silme,
  • Shashwata Chakraborty

摘要

Carotid artery bifurcations are prone to plaque formation or stenosis due to their complex geometry. In this study, the streamline patterns and wall shear stress at the carotid artery bifurcation have been investigated using a commercial CFD code. The effect of stenosis on the blood flow patterns has been observed at mild (25%), moderate (50%), and severe (75%) stenoses. The steady-state continuity and Navier–Stokes momentum equations with constant blood properties are considered for the numerical analysis. Systole and diastole phases are defined by Reynolds numbers 145 and 40, respectively. The results show increased blood velocity and arterial wall shear stress at the stenosed region.