Rim dynamics and instability of a curved liquid sheet formed by jet impinging on a circular plane

物理 不稳定性 喷射(流体) 机械 平面(几何) 动力学(音乐) 扭结不稳定性 经典力学 几何学 等离子体不稳定性 声学 数学
作者
Tianyu Kang,Qingbo Yu,Zhongyuan Liu,Shengkai Tao
出处
期刊:Physics of Fluids [American Institute of Physics]
卷期号:36 (9) 被引量:2
标识
DOI:10.1063/5.0229093
摘要

The free liquid sheet formed by jet impingement often has a certain bending, and this paper focuses on the influence of this bending on the rim dynamics and instability. The derivations of the rim retraction and the flow trajectory of the curved liquid sheet show that the length of the flow trajectory reaching the equator is the same as the Taylor–Culick radius representing the rim retraction equilibrium. It is inferred that the stable radius corresponding to the curved trajectory must be less than the Taylor–Culick radius, that is, a curved liquid sheet cannot reach the stable position by the rim retraction equilibrium alone. Experimental results confirm that the greater the degree of liquid sheet bending, the farther the stable radius from the Taylor–Culick radius. In addition to the rim retraction, the rim can remain in a stable position with the help of the fingerlike cusp, formed due to instability, deflecting liquid momentum. The dispersion equation of rim instability is derived to obtain the maximum growth rate of disturbance and corresponding wavelength. The surface tension is the main driving force of rim instability, and the liquid flow from the liquid sheet into the rim inhibits the rim instability. With increasing We, the decreasing local liquid sheet thickness increases the growth rate of disturbance and decreases the instability wavelength, which causes the rim to destabilize at a smaller rim radius, resulting in the corresponding decrease in droplet radius. The experimental results agree well with the theoretical prediction.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
爱学习完成签到,获得积分10
2秒前
2秒前
June完成签到,获得积分10
3秒前
科研通AI5应助小太阳采纳,获得10
4秒前
4秒前
洁净的易梦完成签到,获得积分20
4秒前
linhuafeng发布了新的文献求助10
4秒前
4秒前
科研通AI5应助清爽花卷采纳,获得10
5秒前
虫虫发布了新的文献求助10
5秒前
5秒前
6秒前
Zerozak发布了新的文献求助10
6秒前
纷扬完成签到,获得积分10
6秒前
lalala发布了新的文献求助10
8秒前
油条完成签到,获得积分10
8秒前
NARUTO完成签到,获得积分10
8秒前
9秒前
唐唐完成签到,获得积分10
9秒前
10秒前
韩羽丰完成签到,获得积分10
11秒前
木木发布了新的文献求助10
11秒前
隐形曼青应助qifei采纳,获得10
12秒前
爱吃饼干的土拨鼠完成签到,获得积分10
13秒前
15秒前
15秒前
Zerozak完成签到,获得积分10
16秒前
樂酉完成签到 ,获得积分10
17秒前
虫虫完成签到,获得积分20
18秒前
桃紫完成签到,获得积分10
19秒前
深情安青应助执着千青采纳,获得10
19秒前
TrinhTran2001发布了新的文献求助10
20秒前
上官若男应助NARUTO采纳,获得10
21秒前
脑洞疼应助听闻采纳,获得10
21秒前
21秒前
只道寻常完成签到,获得积分10
22秒前
zyzzyzzyz完成签到,获得积分10
24秒前
wzzznh完成签到 ,获得积分10
26秒前
橙子完成签到,获得积分10
27秒前
情怀应助大观天下采纳,获得10
29秒前
高分求助中
Applied Survey Data Analysis (第三版, 2025) 800
Assessing and Diagnosing Young Children with Neurodevelopmental Disorders (2nd Edition) 700
Images that translate 500
Algorithmic Mathematics in Machine Learning 500
Handbook of Innovations in Political Psychology 400
Mapping the Stars: Celebrity, Metonymy, and the Networked Politics of Identity 400
Nucleophilic substitution in azasydnone-modified dinitroanisoles 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3842679
求助须知:如何正确求助?哪些是违规求助? 3384676
关于积分的说明 10536789
捐赠科研通 3105234
什么是DOI,文献DOI怎么找? 1710162
邀请新用户注册赠送积分活动 823493
科研通“疑难数据库(出版商)”最低求助积分说明 774110