气态液滴流过物体时液滴悬浮的机理

IF 0.6 4区 物理与天体物理 Q4 MECHANICS Doklady Physics Pub Date : 2022-03-13 DOI:10.1134/S1028335821120077
A. Yu. Varaksin, N. V. Vasil’ev, S. N. Vavilov
{"title":"气态液滴流过物体时液滴悬浮的机理","authors":"A. Yu. Varaksin,&nbsp;N. V. Vasil’ev,&nbsp;S. N. Vavilov","doi":"10.1134/S1028335821120077","DOIUrl":null,"url":null,"abstract":"<p>With the use of high-speed video filming, the effect of the appearance of droplets with near-zero velocities in gas–droplet flows past bodies was discovered for the first time. The formation of levitating droplets occurred as a result of the coalescence of droplets falling and reflected from the model. It has been suggested that the main mechanism for the appearance of drops with near-zero velocities is momentum exchange as a result of the collision of droplets with opposite directions and values of velocity close in magnitude. The effect of an increase in the size of large levitating drops due to the coalescence of falling droplets with them due to multiple collisions has been detected.</p>","PeriodicalId":533,"journal":{"name":"Doklady Physics","volume":"66 12","pages":"345 - 347"},"PeriodicalIF":0.6000,"publicationDate":"2022-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"The Mechanism of Droplet Levitation in Gas–Droplet Flows Past Bodies\",\"authors\":\"A. Yu. Varaksin,&nbsp;N. V. Vasil’ev,&nbsp;S. N. Vavilov\",\"doi\":\"10.1134/S1028335821120077\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>With the use of high-speed video filming, the effect of the appearance of droplets with near-zero velocities in gas–droplet flows past bodies was discovered for the first time. The formation of levitating droplets occurred as a result of the coalescence of droplets falling and reflected from the model. It has been suggested that the main mechanism for the appearance of drops with near-zero velocities is momentum exchange as a result of the collision of droplets with opposite directions and values of velocity close in magnitude. The effect of an increase in the size of large levitating drops due to the coalescence of falling droplets with them due to multiple collisions has been detected.</p>\",\"PeriodicalId\":533,\"journal\":{\"name\":\"Doklady Physics\",\"volume\":\"66 12\",\"pages\":\"345 - 347\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2022-03-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Doklady Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1028335821120077\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Doklady Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1028335821120077","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 2

摘要

利用高速视频拍摄技术,首次发现了气体液滴流过物体时以接近零速度出现的液滴所产生的影响。悬浮液滴的形成是落在模型上的液滴与模型反射的液滴合并的结果。有人提出,出现速度接近于零的液滴的主要机制是动量交换,这是由方向相反且速度值大小相近的液滴碰撞造成的。已经检测到由于多次碰撞导致下落的液滴与它们合并而导致的大型悬浮液滴尺寸增加的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

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
The Mechanism of Droplet Levitation in Gas–Droplet Flows Past Bodies

With the use of high-speed video filming, the effect of the appearance of droplets with near-zero velocities in gas–droplet flows past bodies was discovered for the first time. The formation of levitating droplets occurred as a result of the coalescence of droplets falling and reflected from the model. It has been suggested that the main mechanism for the appearance of drops with near-zero velocities is momentum exchange as a result of the collision of droplets with opposite directions and values of velocity close in magnitude. The effect of an increase in the size of large levitating drops due to the coalescence of falling droplets with them due to multiple collisions has been detected.

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
Doklady Physics
Doklady Physics 物理-力学
CiteScore
1.40
自引率
12.50%
发文量
12
审稿时长
4-8 weeks
期刊介绍: Doklady Physics is a journal that publishes new research in physics of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.
期刊最新文献
Vortex Rings in a Ferromagnet Exact Solutions to Inhomogeneous Boundary Value Problems of the Theory of Elasticity in a Rectangle Contact Problems for Two Stamps and a New Type of Crack Model Molecular Dynamic Study of the Cratering Process during High-Velocity Impact of Metallic Clusters with a Substrate Analytical Solution to the Creep Problem of a Viscoelastic Material in a Round Tube
×
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