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Oscillating shear index, time averaged wall shear index, relative residence time analysis in 3D structured analytical artery

机译:振荡剪切指数,时间平均壁剪切指数,3D结构分析动脉中的相对停留时间分析

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This study investigates the bio-mechanics of one main artery model in a three dimensional analytical cylindrical generated geometry based on a real human artery. Structured geometry is a medium large (celiac) artery. Constant and sinus velocity profile is applied as an interpolated input. Non-Newtonian Carreau viscosity model and fluid-structure interaction (FSI) is applied numerically. Oscillating Shear Index (OSI), Time Averaged Wall Shear Stress Index (TAWSSI) and Relative Residence Time (RRE) as well as velocity, pressure and pressure are studied. As an example, stenosed areas can be studied with the help of the model. Then these values are compared and presented for their importance.
机译:这项研究调查了在基于真实人类动脉的三维分析圆柱体生成的几何形状中的一种主动脉模型的生物力学。结构化几何形状是中等大的(腓肠肌)动脉。恒定和正弦速度曲线用作插值输入。非牛顿卡罗粘度模型和流固耦合(FSI)被数值应用。研究了振动剪切指数(OSI),时间平均壁剪切应力指数(TAWSSI)和相对停留时间(RRE)以及速度,压力和压力。例如,可以在模型的帮助下研究狭窄区域。然后将这些值进行比较并说明其重要性。

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