水滴对润湿性图案编织网的影响

Droplet Pub Date : 2023-06-08 DOI:10.1002/dro2.53
Sotiris Catsoulis, Uddalok Sen, Jens H. Walther, Constantine M. Megaridis
{"title":"水滴对润湿性图案编织网的影响","authors":"Sotiris Catsoulis,&nbsp;Uddalok Sen,&nbsp;Jens H. Walther,&nbsp;Constantine M. Megaridis","doi":"10.1002/dro2.53","DOIUrl":null,"url":null,"abstract":"<p>Droplet impact and breakup on meshes are relevant to a number of applications involving filters, textiles, and other spatially inhomogeneous media encountering gas-dispersed liquids. This study presents high-resolution simulation results of mm-size droplets striking wettability-patterned meshes with the goal of (a) replicating prior physical experiments, (b) identifying sensitivities to the initial conditions and wettability of the mesh wires, and (c) studying the fluid-field dynamics when droplets strike such meshes. The insights from the present model may help to advance understanding of droplet atomization on meshes, which depends on a number of parameters that are nontrivial to control in an experimental setting. The analysis is carried out by benchmarking the numerical methods used in a commercial software package for orthogonal droplet impact on a flat smooth surface, followed by a convergence analysis, and finally, simulation of specific experiments and case studies involving wettability-patterned mesh targets. We show that the wettability contrast between the hydrophilic and hydrophobic domains on the mesh as well as the contact angle hysteresis on each side play a critical role in determining whether liquid pinch-off occurs. The three-dimensional computational framework constructed in this work is a step toward predicting the postimpact behavior of droplets that strike woven meshes and other porous inhomogeneous media consisting of materials with different wetting properties.</p>","PeriodicalId":100381,"journal":{"name":"Droplet","volume":"2 3","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/dro2.53","citationCount":"4","resultStr":"{\"title\":\"Droplet impact on a wettability-patterned woven mesh\",\"authors\":\"Sotiris Catsoulis,&nbsp;Uddalok Sen,&nbsp;Jens H. Walther,&nbsp;Constantine M. Megaridis\",\"doi\":\"10.1002/dro2.53\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Droplet impact and breakup on meshes are relevant to a number of applications involving filters, textiles, and other spatially inhomogeneous media encountering gas-dispersed liquids. This study presents high-resolution simulation results of mm-size droplets striking wettability-patterned meshes with the goal of (a) replicating prior physical experiments, (b) identifying sensitivities to the initial conditions and wettability of the mesh wires, and (c) studying the fluid-field dynamics when droplets strike such meshes. The insights from the present model may help to advance understanding of droplet atomization on meshes, which depends on a number of parameters that are nontrivial to control in an experimental setting. The analysis is carried out by benchmarking the numerical methods used in a commercial software package for orthogonal droplet impact on a flat smooth surface, followed by a convergence analysis, and finally, simulation of specific experiments and case studies involving wettability-patterned mesh targets. We show that the wettability contrast between the hydrophilic and hydrophobic domains on the mesh as well as the contact angle hysteresis on each side play a critical role in determining whether liquid pinch-off occurs. The three-dimensional computational framework constructed in this work is a step toward predicting the postimpact behavior of droplets that strike woven meshes and other porous inhomogeneous media consisting of materials with different wetting properties.</p>\",\"PeriodicalId\":100381,\"journal\":{\"name\":\"Droplet\",\"volume\":\"2 3\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-06-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/dro2.53\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Droplet\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/dro2.53\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Droplet","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/dro2.53","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4

摘要

液滴对网格的冲击和破裂与许多应用有关,包括过滤器、纺织品和其他遇到气体分散液体的空间不均匀介质。本研究提供了mm尺寸液滴撞击润湿性图案化网格的高分辨率模拟结果,目的是(a)复制先前的物理实验,(b)确定对初始条件和网格线润湿性的敏感性,以及(c)研究液滴撞击此类网格时的流场动力学。本模型的见解可能有助于加深对网格上液滴雾化的理解,这取决于在实验环境中难以控制的许多参数。该分析是通过对商业软件包中使用的数值方法进行基准测试来进行的,该软件包用于在平坦光滑表面上进行正交液滴冲击,然后进行收敛性分析,最后模拟涉及润湿性图案化网格目标的具体实验和案例研究。我们表明,网格上亲水和疏水区域之间的润湿性对比以及每一侧的接触角滞后在决定是否发生液体夹断方面起着关键作用。这项工作中构建的三维计算框架是预测液滴撞击编织网和其他由具有不同润湿特性的材料组成的多孔非均匀介质的后冲击行为的一步。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Droplet impact on a wettability-patterned woven mesh

Droplet impact on a wettability-patterned woven mesh

Droplet impact and breakup on meshes are relevant to a number of applications involving filters, textiles, and other spatially inhomogeneous media encountering gas-dispersed liquids. This study presents high-resolution simulation results of mm-size droplets striking wettability-patterned meshes with the goal of (a) replicating prior physical experiments, (b) identifying sensitivities to the initial conditions and wettability of the mesh wires, and (c) studying the fluid-field dynamics when droplets strike such meshes. The insights from the present model may help to advance understanding of droplet atomization on meshes, which depends on a number of parameters that are nontrivial to control in an experimental setting. The analysis is carried out by benchmarking the numerical methods used in a commercial software package for orthogonal droplet impact on a flat smooth surface, followed by a convergence analysis, and finally, simulation of specific experiments and case studies involving wettability-patterned mesh targets. We show that the wettability contrast between the hydrophilic and hydrophobic domains on the mesh as well as the contact angle hysteresis on each side play a critical role in determining whether liquid pinch-off occurs. The three-dimensional computational framework constructed in this work is a step toward predicting the postimpact behavior of droplets that strike woven meshes and other porous inhomogeneous media consisting of materials with different wetting properties.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
6.60
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信