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

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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。

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

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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.

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来源期刊

Doklady Physics 物理-力学

CiteScore

1.40

自引率

12.50%

发文量

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.