Sinusoidal variation of wall shear stress in daughter tube through 45 deg branch model in laminar flow.
Sinusoidal variation of wall shear stress in daughter tube through 45 deg branch model in laminar flow.
复制标题
层流中 45 度分支模型的子管壁面剪应力的正弦变化。
DOI：
10.1115/1.2895695
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
K. Kohtoh
中科院分区：
文献类型：
--
作者：
R. Yamaguchi;K. Kohtoh
本文描述了一个分支模型的流动情况的实验实施工作，该模型具有一个从母管以45 °分叉的子管。利用电化学方法进行了实验。结果表明，即使在定常流动中，子管近端壁面上的壁面剪应力沿着方向随位置的变化也呈阻尼正弦波的形式。对于无量纲脉动频率α = 6.6的脉动流，上述趋势更为严重，其幅值分布与定常流中壁面剪应力的分布相似。
The present paper describes the experimental implemented work on the flow situation through a branch model having a daughter tube bifurcated from a parent tube at 45 deg. Experiments have been conducted utilizing an electrochemical method. The results show that, even in steady flow, the wall shear stress along the proximal wall in the daughter tube varies significantly with position in the form of a damped sine wave. For pulsating flow at the nondimensional pulsating frequency of alpha = 6.6, the above mentioned tendency appears to be severe, and the distribution of its amplitude in pulsating flow is similar to that of wall shear stress in steady flow.