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arXiv 1010.3076physics.flu-dyn
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通过悬浮液的图案化涂层

Patterned coating by suspensions

Justin C. T. Kao, A. E. Hosoi

摘要:

这是一个流体动力学视频提交给画廊的第63届年度会议的美国物理学会分部的流体动力学。本文研究了旋转玻璃柱内中性浮力粒子悬浮液的朗道-列维奇流动。这不同于以前研究的系统,因为我们处理的宏观颗粒,立即超过沉积的液体膜的厚度。因此,在液体涂覆的壁上存在的颗粒产生过量的表面积,导致颗粒之间的毛细吸引。反过来,这种毛细吸引力诱导悬浮涂层相分离成致密颗粒簇或透明液体的区域。

英文摘要:

This is a fluid dynamics video submitted to the Gallery of Fluid Motion of the 63rd Annual Meeting of the American Physical Society Division of Fluid Dynamics. We examine the Landau-Levich flow of a suspension of neutrally buoyant particles within a rotating glass cylinder. This differs from previously investigated systems in that we deal with macroscopic particles which immediately exceed the thickness of the deposited liquid film. Thus, the presence of particles on the liquid-coated wall creates excess surface area, leading to a capillary attraction between particles. In turn, this capillary attraction induces phase separation of the suspension coating into regions of either dense particle clustering or clear liquid.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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