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Hydrodynamic interactions between a self-rotation rotator and passive particles
Physics of Fluids ( IF 4.6 ) Pub Date : 2017-10-01 , DOI: 10.1063/1.4997221
Zhenyu Ouyang 1 , Jian-Zhong Lin 1 , Xiaoke Ku 1
Affiliation  

In this paper, we numerically investigate the hydrodynamic interaction between a self-rotation rotator and passive particles in a two-dimensional confined cavity at two typical Reynolds numbers according to the different flow features. Both the fluid-particle interaction and particle-particle interaction through fluid media are taken into consideration. The results show that from the case of a rotator and one passive particle to the case of a rotator and two passive particles, the system becomes much more complex because the relative displacement between the rotator and the passive particles and the velocity of passive particles are strongly dependent on the Reynolds number and the initial position of passive particles. For the system of two particles, the passive particle gradually departs from the rotator although its relative displacement to the rotator exhibits a periodic oscillation at the lower Reynolds number. Furthermore, the relative distance between the two particles and the rotator’s rotational...

中文翻译:

自转转子和被动粒子之间的流体动力学相互作用

在本文中,我们根据不同的流动特征,在两个典型雷诺数下,数值研究了二维密闭腔中自转转子与被动粒子之间的流体动力学相互作用。考虑了流体-粒子相互作用和通过流体介质的粒子-粒子相互作用。结果表明,从一个旋转体和一个被动粒子的情况到一个旋转体和两个被动粒子的情况,系统变得更加复杂,因为旋转体和被动粒子之间的相对位移和被动粒子的速度强烈取决于雷诺数和被动粒子的初始位置。对于两个粒子的系统,被动粒子逐渐远离旋转体,尽管其相对于旋转体的位移在较低的雷诺数下表现出周期性振荡。此外,两个粒子之间的相对距离与旋转体的旋转...
更新日期:2017-10-01
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