Detachment of droplets from cylinders in flow using an experimental analogue
Detachment of droplets from cylinders in flow using an experimental analogue
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使用实验模拟从流动的圆柱体中分离液滴
DOI：
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发表时间：
2015
影响因子：
3.7
通讯作者：
B. Mullins
中科院分区：
文献类型：
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作者：
C. Hotz;R. Mead;T. Becker;A. King;S. Wurster;G. Kasper;B. Mullins
这项工作使用原子力显微镜实验地检查了液滴从亲油和憎油纤维上的分离。液滴脱落力随纤维直径的增大而增大，亲水性纤维的脱落力大于憎水性纤维。我们还考虑了位于两根纤维和纤维阵列(如纤维垫或过滤器中)交叉处的液滴的分离，发现所需的分离力高于单一纤维上类似尺寸的液滴，尽管没有理论上预期的那么高。建立了预测单纤维剥离力的模型，该模型与实验结果吻合较好。结果发现，整个数据集(单纤维和多纤维)可以用幂定律关系描述得最好。
This work experimentally examines the detachment of liquid droplets from both oleophilic and oleophobic fibres, using an atomic force microscope. The droplet detachment force was found to increase with increasing fibre diameter and forces were higher for philic fibres than phobic fibres. We also considered the detachment of droplets situated on the intersection of two fibres and arrays of fibres (such as found in fibrous mats or filters) and found that the required detachment forces were higher than for similarly sized droplets on a single fibre, though not as high as expected based on theory. A model was developed to predict the detachment force, from single fibres, which agreed well with experimental results. It was found that the entire dataset (single and multiple fibres) could be best described by power law relationships.