首页> 外文会议>NATO ARW and IUTAM Symposium Sep 2-7, 2001 Zakopane, Poland >Interactions between two close spheres in Stokes flow
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Interactions between two close spheres in Stokes flow

机译:斯托克斯流中两个闭合球之间的相互作用

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We investigate if two close spheres in a fluid flow at low-Reynolds-number can touch each other and interact mechanically. We outline how this problem relates to microhydrodynamics of suspensions. We measure the translational and rotational motion of a sphere, which settles in a silicon oil onto another, fixed sphere of the same size. We use simultaneously a video system and a laser interferometer coupled with encoders. We calculate the motion, assuming that the particles come into contact and that the mechanical interactions superpose with the gravitational and hydrodynamic forces. The experiment confirms the model and determines its parameters.
机译:我们研究低雷诺数的流体中的两个闭合球体是否可以相互接触并发生机械相互作用。我们概述了这个问题与悬浮液的微流体动力学之间的关系。我们测量一个球体的平移和旋转运动,该球体在硅油中沉降到另一个相同大小的固定球体上。我们同时使用视频系统和与编码器耦合的激光干涉仪。我们计算运动,假设粒子接触并且机械相互作用与重力和流体动力叠加。实验确认模型并确定其参数。

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