{"title":"The Mechanism of Droplet Levitation in Gas–Droplet Flows Past Bodies","authors":"A. Yu. Varaksin, N. V. Vasil’ev, 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}
引用次数: 2
Abstract
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.
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.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
