Operating ranges of gas-liquid capillary microseparators: Experiments and theory
Operating ranges of gas-liquid capillary microseparators: Experiments and theory
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气液毛细管微分离器的工作范围：实验和理论
DOI：
10.1016/j.ces.2014.04.017
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发表时间：
2014
影响因子：
4.7
通讯作者：
Roydhouse M
中科院分区：
文献类型：
--
作者：
Roydhouse M
对毛细管气液相微分离器进行了实验和理论研究。所研究的装置包括一个主微通道，每侧都有一组毛细血管，因此由于毛细血管效应，液体（润湿）相可以与气体（非润湿）相分离。不同的单位采用不同的毛细血管特性（恒定或变细的截面积和毛细血管大小）。我们研究了完全分离如何依赖于外部控制的液体和气体出口的压差，以及分离如何受到施加的进口流量的影响。结果表明，随着流体流量的增加，可操作压力窗口变窄，并且与基于简单hagan - poiseuille公式的理论预测存在差异。用一个考虑界面曲率效应的新方程解决了这一问题，结果与实验结果在定性上是一致的。此外，我们还进行了CFD模拟，观察了在高流速下界面破裂的出现。
An experimental and theoretical study of capillary gas/liquid phase microseparators is presented. The device studied comprises a main microchannel with a set of capillaries fabricated to each side so that the liquid (wetting) phase can be separated from the gas (non-wetting) phase due to capillary effects. Different units are employed with different characteristics of capillaries (constant or tapered cross-sectional area and capillary size). We study how complete separation depends on the externally controlled pressure difference at the liquid and the gas outlet and how separation is affected by the imposed inlet flow rate. The results demonstrate that the operability pressure window becomes narrower as the fluid flow rates increase, and reveal discrepancies with theoretical predictions based on a simple Hagen–Poiseuille formulation. This is addressed by a new equation that takes into account interface curvature effects, and is found to be in qualitative agreement with the experimental results. In addition, we perform CFD simulations observing the emergence of interface breaking at high flow rates.
化学异质微通道中无序引起的滞后和接触线运动的非定域性
DOI：
--
发表时间：
2012
期刊：
影响因子：
--
作者：
Christophe Wylock;M. Pradas;B. Haut;P. Colinet;S. Kalliadasis
通讯作者：
S. Kalliadasis
强异质域中界面动力学的放大相场模型
DOI：
--
发表时间：
2012
期刊：
Proceedings of the Royal Society A
影响因子：
--
作者：
M. Schmuck;M. Pradas;G. Pavliotis;S. Kalliadasis
通讯作者：
S. Kalliadasis
影响因子：
8.6
作者：
Queralt-Martin, M.;Pradas, M.;Hernandez-Machado, A.
通讯作者：
Hernandez-Machado, A.