{"title":"Understanding interfacial dynamics during freezing and melting of deposited and sessile water droplets","authors":"Prashant Kumar, Sudhakar Subudhi, Arup Kumar Das","doi":"10.1016/j.ces.2025.121368","DOIUrl":null,"url":null,"abstract":"<div><div>We present an in-depth analysis of sequential ice formation and melt dynamics of both impact deposited and sessile drop. Phenomena like contact line arrest during freezing, ice tip singularity, surface and bulk melting in the deposited drop are shown through careful observations of the free surface and interface. Furthermore, for melting phenomenon surface and bulk melting is observed for deposited droplet and only bulk melting for sessile droplets. For the deposited droplet freezing, the surface temperature has been varied from −10 °C to −60 °C and Weber number has been varied from 2.4 to 18 to get their effect on ice contact angle and contact diameter. Differences in interfacial features during solidification-melting of deposited and sessile drops are also evaluated. Moreover, freezing and melting phenomenon of sessile drop on inclined surfaces showed that for inclined surface angle change from 0° to 75°, the tip asymmetry changes from 0° to 15°.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"307 ","pages":"Article 121368"},"PeriodicalIF":4.3000,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0009250925001915","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
We present an in-depth analysis of sequential ice formation and melt dynamics of both impact deposited and sessile drop. Phenomena like contact line arrest during freezing, ice tip singularity, surface and bulk melting in the deposited drop are shown through careful observations of the free surface and interface. Furthermore, for melting phenomenon surface and bulk melting is observed for deposited droplet and only bulk melting for sessile droplets. For the deposited droplet freezing, the surface temperature has been varied from −10 °C to −60 °C and Weber number has been varied from 2.4 to 18 to get their effect on ice contact angle and contact diameter. Differences in interfacial features during solidification-melting of deposited and sessile drops are also evaluated. Moreover, freezing and melting phenomenon of sessile drop on inclined surfaces showed that for inclined surface angle change from 0° to 75°, the tip asymmetry changes from 0° to 15°.
期刊介绍：
Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline.
Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.
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