Evolution of symmetrical microvortices in a generating microdroplet during neck breakage stage in an altered T-shaped microchannel

doi:10.1007/s00348-024-03923-9

IMECH-IR > 微重力重点实验室

	Evolution of symmetrical microvortices in a generating microdroplet during neck breakage stage in an altered T-shaped microchannel
	Shen,Feng1 ; Yang X(杨鑫)2; Li,Chunyou 2,4; Wang J(王佳)3; Wu D(吴笛)3 ; Liu,Zhaomiao 1
通讯作者	Shen, Feng([email protected])
发表期刊	EXPERIMENTS IN FLUIDS
	2024-12-01
卷号	65 期号:12 页码:12
ISSN	0723-4864
摘要	Vortices are a fascinating flow phenomenon and an important research topic in fluid mechanics. In this study, the evolution of symmetrical vortices within a generating droplet in an altered T-shaped microchannel was investigated using microparticle image velocimetry (micro-PIV) and high-speed imaging microscopy. Transient flow patterns within the microdroplet were visualized in the focal plane, revealing a high-speed jet flow and two counter-rotating symmetric vortex pairs. These findings suggest that the internal flow field of the microdroplet exhibits intricate three-dimensional structures. The vortical flow behaviors were quantitatively characterized in detail by calculating the vorticity, rotation, shear deformation, and tensile deformation. These results are crucial for comprehending the initial flow dynamics and mixing processes occurring within generating microdroplets.
DOI	10.1007/s00348-024-03923-9
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001361225500001
关键词[WOS]	DROPLET FORMATION PROCESS ; LIQUID TRANSFER ; FLOW ; DYNAMICS ; PIV ; VISUALIZATION
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
资助项目	National Natural Science Foundation of China[11872083] ; National Natural Science Foundation of China[12172017] ; Project of Beijing Municipal Education Commission[KZ201710005006] ; Project of Beijing Municipal Education Commission[KZ202110005007]
项目资助者	National Natural Science Foundation of China ; Project of Beijing Municipal Education Commission
论文分区	二类
力学所作者排名	2
RpAuthor	Shen, Feng
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/97563
专题	微重力重点实验室
作者单位	1.Beijing Univ Technol, Sch Math Stat & Mech, Beijing 100124, Peoples R China; 2.Beijing Univ Technol, Coll Mech & Energy Engn, Beijing 100124, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China; 4.AVIC Mfg Technol Inst, Beijing 100120, Peoples R China
推荐引用方式 GB/T 7714	Shen,Feng,Yang X,Li,Chunyou,et al. Evolution of symmetrical microvortices in a generating microdroplet during neck breakage stage in an altered T-shaped microchannel[J]. EXPERIMENTS IN FLUIDS,2024,65,12,:12.Rp_Au:Shen, Feng
APA	Shen,Feng,杨鑫,Li,Chunyou,王佳,吴笛,&Liu,Zhaomiao.(2024).Evolution of symmetrical microvortices in a generating microdroplet during neck breakage stage in an altered T-shaped microchannel.EXPERIMENTS IN FLUIDS,65(12),12.
MLA	Shen,Feng,et al."Evolution of symmetrical microvortices in a generating microdroplet during neck breakage stage in an altered T-shaped microchannel".EXPERIMENTS IN FLUIDS 65.12(2024):12.