中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 流固耦合系统力学重点实验室(2012-)
Impact forces of drops falling on inclined superhydrophobic surfaces

文献类型：期刊论文

作者Xu, Hechen2,3; Zhang, Bin1; Lv, Cunjing2,3
刊名APPLIED PHYSICS LETTERS
出版日期2024-08-26
卷号125期号:9页码:6
ISSN号0003-6951
DOI10.1063/5.0222975
通讯作者Zhang, Bin(zhangbin@imech.ac.cn) ; Lv, Cunjing(cunjinglv@tsinghua.edu.cn)
英文摘要Due to its scientific significance and practical applications, the common natural phenomena of drops impacting on inclined surfaces have attracted extensive attention. Previous research has primarily reported the distinct morphology and dynamic behavior of drops impacting on inclined superhydrophobic surfaces compared to the impact on the horizontal scenarios. One distinguished feature of drop impingement on inclined surfaces is the asymmetric shapes of the drop, which accounts for different underlying physics compared to the impacts on horizontal surfaces. However, the impact forces exerted by the inclined surface during impingement have remained unknown. In this study, we present a direct measurement of the normal impact force of drops on inclined superhydrophobic surfaces using a high-precision force sensor. We observe the temporal evolution of the force and identify two peak forces occurring during the spreading and retraction stages, respectively. Our findings lie on investigating the variation of these two peak forces with the normal Weber number, based on scaling arguments. We reveal that the asymmetrical morphology of the drop must be taken into account especially in the scenarios of large impact velocities and large tilt angles to revise the theoretical model of the second peak force. The physics reported in this work sheds new light on the impingement of drops.
WOS关键词WATER DROPLET ; LIQUID-DROP ; DYNAMICS ; SIZE ; RESISTANCE ; EVOLUTION ; OUTCOMES ; TIME
资助项目National Natural Science Foundation of China10.13039/501100001809[11902179] ; National Natural Science Foundation of China10.13039/501100001809[12172189] ; National Natural Science Foundation of China10.13039/501100001809[52111540269] ; National Natural Science Foundation of China10.13039/501100001809[11921002] ; National Natural Science Foundation of China[20221080070] ; Tsinghua University Initiative Scientific Research Program
WOS研究方向Physics
语种英语
WOS记录号WOS:001301059400001
资助机构National Natural Science Foundation of China10.13039/501100001809 ; National Natural Science Foundation of China ; Tsinghua University Initiative Scientific Research Program
源URL[http://dspace.imech.ac.cn/handle/311007/96454]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者Zhang, Bin; Lv, Cunjing
作者单位1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
2.Tsinghua Univ, Ctr Nano & Micro Mech, AML, Beijing 100084, Peoples R China
3.Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Hechen,Zhang, Bin,Lv, Cunjing. Impact forces of drops falling on inclined superhydrophobic surfaces[J]. APPLIED PHYSICS LETTERS,2024,125(9):6.
APA Xu, Hechen,Zhang, Bin,&Lv, Cunjing.(2024).Impact forces of drops falling on inclined superhydrophobic surfaces.APPLIED PHYSICS LETTERS,125(9),6.
MLA Xu, Hechen,et al."Impact forces of drops falling on inclined superhydrophobic surfaces".APPLIED PHYSICS LETTERS 125.9(2024):6.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。