Effects of surface tension and viscosity on the impact process of droplets onto a rotational surface

Author:

Zhou YiORCID,Jin ZheyanORCID,Yang ZhigangORCID

Abstract

In the present study, the impact process of droplets onto a rotational surface was experimentally studied. The influences of the rotational speed, liquid surface tension, and viscosity on the impact phenomena were carefully investigated. The phenomena of asymmetric spreading, splashing with and without liquid filament, finger formation, and secondary droplets were observed. The results showed that, at the same rotational speed, decrease in the surface tension could result in increase in the wetting length in angular direction and the wetting area. In addition, the splashing threshold was discussed based on the analysis of the lift force. In addition, increase in the linear velocity of the surface could promote the splashing behavior and generate more fingers and secondary droplets. Moreover, droplets with higher viscosity could produce more secondary droplets and less fingers. Meanwhile, droplets with higher surface tension could produce more fingers and less secondary droplets. In addition, new correlations for the spreading ratio, the number of fingers formed at the angle of 150° after impact, and the number of secondary droplets were proposed.

Funder

National Natural Science Foundation of China

National Engineering Research Center of New Energy Vehicles and Power Systems

Liaoning Provincial Key Laboratory of Aircraft Ice Protection

shanghai Gaofeng Project for University Academic Program Development

Publisher

AIP Publishing

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3