Effect of contact angles on dynamical characteristics of the annular focused jet between parallel plates

doi:10.1063/5.0090696

IMECH-IR > 流固耦合系统力学重点实验室

	Effect of contact angles on dynamical characteristics of the annular focused jet between parallel plates
	Huang J(黄荐)1; Wang GH(王广航)1,2; Wang YW(王一伟)1,2 ; Wang JZ(王静竹)1,2; Yao CH(姚朝晖)1
通讯作者	Wang, Jingzhu(wangjingzhu@imech.ac.cn) ; Yao, Zhaohui(yaozh@ucas.edu.cn)
发表期刊	PHYSICS OF FLUIDS
	2022-05-01
卷号	34 期号:5 页码:11
ISSN	1070-6631
摘要	Focused jets have been widely studied owing to the abundance of attractive flow phenomena and industrial applications, whereas annular focused jets are less studied. This study combines experiments, numerical simulations, and analytical modeling to investigate the effect of the contact angle on the generation position and focusing efficiency of annular focused jets between parallel plates. In the experiment, a pulsed laser generates a cavitation bubble inside the droplet, and the rapidly expanding cavitation bubble drives an annular-focused jet on the droplet surface. Changing the plate wettability creates different contact angles and droplet surface shapes between the droplet and plates, which modulates the position and focusing efficiency of the annular jet. Based on the jet singularity theory and by neglecting gravity, the derived formula for the jet position offset is found to depend only on the contact angle, which is in good agreement with the experimental and numerical simulation results. Combined with numerical simulations to analyze the flow characteristics of the droplets between the parallel plates, a new calculation method for the jet focusing efficiency is proposed. Interestingly, when the liquid surface radius is small, the focusing efficiency can be improved by adjusting the contact angle to make the jet position closer to the flat plate, whereas the same operation reduces the focusing efficiency when the radius is large. The study of annular jets can expand the scope of traditional jet research and has the potential to provide new approaches for applications such as high-throughput inkjet printing and liquid transfer. Published under an exclusive license by AIP Publishing.
DOI	10.1063/5.0090696
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000797244200005
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
资助项目	National Natural Science Foundation of China[11872362] ; National Natural Science Foundation of China[12122214] ; Youth Innovation Promotion Association CAS[Y201906] ; Youth Innovation Promotion Association CAS[2022019] ; National Key R&D Program of China[2018FYA0305800]
项目资助者	National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; National Key R&D Program of China
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Wang, Jingzhu ; Yao, Zhaohui
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/89508
专题	流固耦合系统力学重点实验室
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Huang J,Wang GH,Wang YW,et al. Effect of contact angles on dynamical characteristics of the annular focused jet between parallel plates[J]. PHYSICS OF FLUIDS,2022,34,5,:11.
APA	黄荐,王广航,王一伟,王静竹,&姚朝晖.(2022).Effect of contact angles on dynamical characteristics of the annular focused jet between parallel plates.PHYSICS OF FLUIDS,34(5),11.
MLA	黄荐,et al."Effect of contact angles on dynamical characteristics of the annular focused jet between parallel plates".PHYSICS OF FLUIDS 34.5(2022):11.

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