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Three-dimensional numerical computations have been performed for the pulsatile blood flow through eccentric stenosed artery. Pulsatile flow with an average Reynolds number (Re) of 425 and Womersley number (Wo) of 4.65 has been employed at the inlet. Severity of 40 and 60% is chosen for stenosis. Eccentricity has been varied over the range of 0–100% of the difference between normal radius and apparent radius of artery. Iso-Q surfaces are shown to capture the effect of inlet pulse at different instances. The effect of eccentricity is illustrated using axial velocity profiles at different axial locations. Wall hemodynamic parameters such as time-averaged wall shear stress (TAWSS) and oscillatory shear index (OSI) are demonstrated to observe flow fluctuations near the wall.

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Effect of Eccentricity on Pulsatile Blood Flow Through Stenosed Carotid Artery

  • 会议论文

  • 发表日期：

    2025年

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  • Swapnil Rajmane,
  • Shaligram Tiwari

摘要

Three-dimensional numerical computations have been performed for the pulsatile blood flow through eccentric stenosed artery. Pulsatile flow with an average Reynolds number (Re) of 425 and Womersley number (Wo) of 4.65 has been employed at the inlet. Severity of 40 and 60% is chosen for stenosis. Eccentricity has been varied over the range of 0–100% of the difference between normal radius and apparent radius of artery. Iso-Q surfaces are shown to capture the effect of inlet pulse at different instances. The effect of eccentricity is illustrated using axial velocity profiles at different axial locations. Wall hemodynamic parameters such as time-averaged wall shear stress (TAWSS) and oscillatory shear index (OSI) are demonstrated to observe flow fluctuations near the wall.