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

doi:10.1063/5.0090696

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Effect of contact angles on dynamical characteristics of the annular focused jet between parallel plates
	Huang, Jian 2; Wang, Guanghang 1,2; Wang, Yiwei 1,2; Wang, Jingzhu 1,2; Yao, Zhaohui 2
刊名	PHYSICS OF FLUIDS
	2022-05-01
卷号	34 期号:5 页码:11
ISSN号	1070-6631
DOI	10.1063/5.0090696
通讯作者	Wang, Jingzhu(wangjingzhu@imech.ac.cn) ; Yao, Zhaohui(yaozh@ucas.edu.cn)
英文摘要	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.
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]
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:000797244200005
资助机构	National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89507]
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	Wang, Jingzhu; Yao, Zhaohui
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Huang, Jian,Wang, Guanghang,Wang, Yiwei,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	Huang, Jian,Wang, Guanghang,Wang, Yiwei,Wang, Jingzhu,&Yao, Zhaohui.(2022).Effect of contact angles on dynamical characteristics of the annular focused jet between parallel plates.PHYSICS OF FLUIDS,34(5),11.
MLA	Huang, Jian,et al."Effect of contact angles on dynamical characteristics of the annular focused jet between parallel plates".PHYSICS OF FLUIDS 34.5(2022):11.