StarTube: a tube with reduced contact line for minimized gas bubble resistance.
StarTube: a tube with reduced contact line for minimized gas bubble resistance.
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StarTube：接触线减少的管子，可最大限度地减少气泡阻力。
DOI：
10.1021/la801194j
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
P. Koltay
中科院分区：
文献类型：
--
作者：
T. Metz;W. Streule;R. Zengerle;P. Koltay
在这项工作中，我们介绍了一种新的管道设计的多相流，最大限度地减少气泡阻力。被称为“StarTube”的设计具有层状壁结构，旨在防止气泡堵塞。这是通过毛细管力迫使气泡进入管的中心，允许液体在外部凹槽中旁路来执行的。结果发现，在这样的管中的气泡的流动性增加超过1个数量级。原因是垂直于流动方向的接触线被最小化，从而减少了与接触线相关的阻力效应，特别是接触角滞后。
In this work we introduce a novel tubing design for multiphase flow that minimizes gas bubble resistance. The design termed "StarTube" has a lamella-like wall structure and was developed to prevent clogging by gas bubbles. This is performed by forcing gas bubbles into the center of the tube by capillary forces, allowing liquid to bypass in the outer grooves. It was found that the mobility of gas bubbles in such a tube is increased more than 1 order of magnitude. The reason is that the contact line perpendicular to the direction of flow is minimized, reducing resistant effects related to the contact line-in particular, contact angle hysteresis.