{"title":"Droplet shedding on hydrophilic and superhydrophobic surfaces under the effect of air shear flow","authors":"Tao Shi, Hanming Yang, Huaqiao Peng, Zuxi Xia","doi":"10.1007/s11998-023-00861-9","DOIUrl":null,"url":null,"abstract":"<div><p>This study aims to investigate and compare the behavior of droplets of different volumes on hydrophilic and superhydrophobic surfaces (SHSs) under the effect of air shear flow. The results reveal that the effect of droplet volume on wetting length in the case of a hydrophilic surface is different from that in the case of SHS. On hydrophilic surfaces, droplets with larger volumes exhibit greater wetting length and adhesion, whereas on SHSs, these parameters are similar regardless of droplet volume. Additionally, airflow velocity is one of the critical factors for shear-driven droplet behavior on SHS. At an airspeed of 5 m/s, droplets slide on the SHS; however, they roll on the surface at an airspeed of 15 m/s.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Coatings Technology and Research","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11998-023-00861-9","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
This study aims to investigate and compare the behavior of droplets of different volumes on hydrophilic and superhydrophobic surfaces (SHSs) under the effect of air shear flow. The results reveal that the effect of droplet volume on wetting length in the case of a hydrophilic surface is different from that in the case of SHS. On hydrophilic surfaces, droplets with larger volumes exhibit greater wetting length and adhesion, whereas on SHSs, these parameters are similar regardless of droplet volume. Additionally, airflow velocity is one of the critical factors for shear-driven droplet behavior on SHS. At an airspeed of 5 m/s, droplets slide on the SHS; however, they roll on the surface at an airspeed of 15 m/s.
期刊介绍：
Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.
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