统计结果表明:体外反搏使剪切应力的平均值、变化范围及变化速度都发生了变化,即增加了血流和剪切应力的脉动性。
The statistical results show that the average, the range of change, and the changing rate were augmented with ECP, i. e. the phasic characteristics of shear stress were increased.
我们利用计算流体动力学的方法,分析了定常流与脉动流两种条件下,支架植入引起的血管壁面剪应力的变化。
We used computational fluid dynamics(CFD) to investigate the steady and pulsatile flows in the vicinity of model stents and focused on the changes of wall shear stress caused by the implanted stents.
给出了雷诺应力、脉动动能和脉动速度均方根随雷诺数的变化规律,其中雷诺应力、脉动动能给出了定量公式。
Meanwhile, a rule of Reynolds stress, energy of velocity fluctuations and RMS velocity with different Reynolds number is presented along with quantitative formula.
给出了雷诺应力、脉动动能和脉动速度均方根随雷诺数的变化规律,其中雷诺应力、脉动动能给出了定量公式。
Meanwhile, a rule of Reynolds stress, energy of velocity fluctuations and RMS velocity with different Reynolds number is presented along with quantitative formula.
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