小型低温超疏水球形目标上过冷水滴的碰撞形态

IF 1.5 4区 工程技术 Q3 ENGINEERING, MECHANICAL Journal of Enhanced Heat Transfer Pub Date : 2024-02-01 DOI:10.1615/jenhheattransf.2024051487
Xin Liu, Yiqing Guo, Jingchun Min, Xuan ZHANG, Xiaomin Wu
{"title":"小型低温超疏水球形目标上过冷水滴的碰撞形态","authors":"Xin Liu, Yiqing Guo, Jingchun Min, Xuan ZHANG, Xiaomin Wu","doi":"10.1615/jenhheattransf.2024051487","DOIUrl":null,"url":null,"abstract":"The collision and freezing of supercooled water droplets exist in many fields and are usually unconducive. The superhydrophobic surfaces used for anti-icing generally have microstructures or local protrusions which could be simplified as small spherical targets comparable to the droplet in size. The supercooled water droplets' collision and freezing on small low-temperature superhydrophobic spherical targets with the sphere-to-droplet diameter ratio D* ≤ 1 are studied numerically in this work. Coupling the solidification-melting model, the Volume of Fluid (VOF) method is used to implement numerical simulations. The supercooling degree, Weber number, and sphere-to-droplet diameter ratio effects on the collision and freezing behaviors and the area coverage ratio of the droplet on the low-temperature small sphere are investigated. Six typical morphologies are identified: full dripping, partial dripping, lower adhesion, wrapping adhesion, upper adhesion, and rebound. The water droplet is found to be more likely to drip down with the increasing Weber number, and the decreasing supercooling degree and the decreasing diameter ratio. A comprehensive morphology map is eventually established to illustrate the combined influence of the Weber number and diameter ratio on the occurrences of the rebound, adhesion, and dripping for different supercooling degrees. This work provides theoretical guidance for the engineering design and structural optimization of anti-icing surfaces.","PeriodicalId":50208,"journal":{"name":"Journal of Enhanced Heat Transfer","volume":"14 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"COLLISION MORPHOLOGIES OF SUPERCOOLED WATER DROPLETS ON SMALL LOW-TEMPERATURE SUPERHYDROPHOBIC SPHERICAL TARGETS\",\"authors\":\"Xin Liu, Yiqing Guo, Jingchun Min, Xuan ZHANG, Xiaomin Wu\",\"doi\":\"10.1615/jenhheattransf.2024051487\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The collision and freezing of supercooled water droplets exist in many fields and are usually unconducive. The superhydrophobic surfaces used for anti-icing generally have microstructures or local protrusions which could be simplified as small spherical targets comparable to the droplet in size. The supercooled water droplets' collision and freezing on small low-temperature superhydrophobic spherical targets with the sphere-to-droplet diameter ratio D* ≤ 1 are studied numerically in this work. Coupling the solidification-melting model, the Volume of Fluid (VOF) method is used to implement numerical simulations. The supercooling degree, Weber number, and sphere-to-droplet diameter ratio effects on the collision and freezing behaviors and the area coverage ratio of the droplet on the low-temperature small sphere are investigated. Six typical morphologies are identified: full dripping, partial dripping, lower adhesion, wrapping adhesion, upper adhesion, and rebound. The water droplet is found to be more likely to drip down with the increasing Weber number, and the decreasing supercooling degree and the decreasing diameter ratio. A comprehensive morphology map is eventually established to illustrate the combined influence of the Weber number and diameter ratio on the occurrences of the rebound, adhesion, and dripping for different supercooling degrees. This work provides theoretical guidance for the engineering design and structural optimization of anti-icing surfaces.\",\"PeriodicalId\":50208,\"journal\":{\"name\":\"Journal of Enhanced Heat Transfer\",\"volume\":\"14 1\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Enhanced Heat Transfer\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1615/jenhheattransf.2024051487\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Enhanced Heat Transfer","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1615/jenhheattransf.2024051487","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0

摘要

过冷水滴的碰撞和冻结存在于许多领域,通常是不可克服的。用于防冰的超疏水表面通常具有微结构或局部突起,可简化为与水滴大小相当的小球形目标。本研究以数值方法研究了过冷水滴在球滴直径比 D* ≤ 1 的小型低温超疏水球形目标上的碰撞和冻结。结合凝固-熔化模型,采用流体体积法(VOF)进行数值模拟。研究了过冷度、韦伯数和小球与液滴直径比对低温小球上液滴的碰撞和凝固行为以及面积覆盖率的影响。确定了六种典型形态:完全滴落、部分滴落、下部粘附、包裹粘附、上部粘附和反弹。研究发现,随着韦伯数的增加、过冷度的降低和直径比的减小,水滴更容易向下滴落。最终建立了一个综合形态图,说明了不同过冷度下,韦伯数和直径比对反弹、粘附和滴落现象发生的综合影响。这项工作为防冰表面的工程设计和结构优化提供了理论指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
COLLISION MORPHOLOGIES OF SUPERCOOLED WATER DROPLETS ON SMALL LOW-TEMPERATURE SUPERHYDROPHOBIC SPHERICAL TARGETS
The collision and freezing of supercooled water droplets exist in many fields and are usually unconducive. The superhydrophobic surfaces used for anti-icing generally have microstructures or local protrusions which could be simplified as small spherical targets comparable to the droplet in size. The supercooled water droplets' collision and freezing on small low-temperature superhydrophobic spherical targets with the sphere-to-droplet diameter ratio D* ≤ 1 are studied numerically in this work. Coupling the solidification-melting model, the Volume of Fluid (VOF) method is used to implement numerical simulations. The supercooling degree, Weber number, and sphere-to-droplet diameter ratio effects on the collision and freezing behaviors and the area coverage ratio of the droplet on the low-temperature small sphere are investigated. Six typical morphologies are identified: full dripping, partial dripping, lower adhesion, wrapping adhesion, upper adhesion, and rebound. The water droplet is found to be more likely to drip down with the increasing Weber number, and the decreasing supercooling degree and the decreasing diameter ratio. A comprehensive morphology map is eventually established to illustrate the combined influence of the Weber number and diameter ratio on the occurrences of the rebound, adhesion, and dripping for different supercooling degrees. This work provides theoretical guidance for the engineering design and structural optimization of anti-icing surfaces.
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
Journal of Enhanced Heat Transfer
Journal of Enhanced Heat Transfer 工程技术-工程:机械
CiteScore
3.60
自引率
8.70%
发文量
51
审稿时长
12 months
期刊介绍: The Journal of Enhanced Heat Transfer will consider a wide range of scholarly papers related to the subject of "enhanced heat and mass transfer" in natural and forced convection of liquids and gases, boiling, condensation, radiative heat transfer. Areas of interest include: ■Specially configured surface geometries, electric or magnetic fields, and fluid additives - all aimed at enhancing heat transfer rates. Papers may include theoretical modeling, experimental techniques, experimental data, and/or application of enhanced heat transfer technology. ■The general topic of "high performance" heat transfer concepts or systems is also encouraged.
期刊最新文献
Experimental Study of Fully Developed Turbulent Flow in Internally Finned Tubes Enhancing Heat Transfer with New Hybrid Nanofluids type Core@Shell Nanoparticles Finned and unfinned thermal resistances of a metal foam under jet impingement conditions Experimental Investigation of the Effect of Condenser Configuration on a Horizontally Rotating Wickless Heat Pipe Performance A review of falling film evaporation under different surface structures and external disturbances
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1