Seal types of water-entry cavities generated by the impact of spheres with decreasing Bond number

doi:10.1007/s10409-023-22482-x

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-)

	Seal types of water-entry cavities generated by the impact of spheres with decreasing Bond number
	Zhong YX(钟玉雪); Du Y(杜岩); Qiu RD(丘润荻); Xiao ZJ(肖志坚); Huang J(黄荐); Wang ZY(王志英); Wang JZ(王静竹); Wang YW(王一伟)
刊名	ACTA MECHANICA SINICA ; 6
	2023-06
卷号	39 页码:322482
关键词	Air cavity Seal types Laser-driven method Shallow seal Deep seal
ISSN号	0567-7718
DOI	10.1007/s10409-023-22482-x
英文摘要	The evolution of water-entry cavities gives rise to interesting dynamic phenomena that occur in nature and engineering fields. The evolution and seal types of the cavities remain unsettled at Bo less than 10(-2) since it is difficult to propel a small sphere to impact a water surface at high speed. In the present study, an experiment based on the laserdriven principle is conducted to accelerate a small sphere to hundreds m/s. The types of cavity seal are classified as quasi-static, shallow seal, deep seal, and surface seal within a Bo range of 1-7.57x10(-2). The transition mechanism from a shallow seal to a deep seal is investigated by analyzing the cross-sectional characteristics of cavity necks. With a further decrease in Bo (5.69x10(-2)-8.41x10(-3)), the shallow seal is changed directly to a surface seal since the pinch-off time of the cross section at the cavity neck decreases with Bo, and hence, the deep seal disappears. Finally, a parameter study is conducted by varying We and Bo in the air cavity. Two boundaries are obtained: We approximate to 64 for the transition between quasi-static and shallow seals and We approximate to 326 for the transition between shallow seals and surface seals.
分类号	二类
WOS研究方向	Engineering, Mechanical ; Mechanics
语种	英语
WOS记录号	WOS:001004247400003
资助机构	National Natural Science Foundation of China [12293000, 12293003, 12293004, 12122214, 12272382] ; Youth Innovation Promotion Association of Chinese Academy of Sciences [2022019]
其他责任者	Wang, JZ (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. ; Wang, JZ (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92410]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.{Qiu Rundi, Wang Yiwei} Univ Chinese Acad Sci Sch Future Technol Beijing 100049 Peoples R China 2.{Zhong Yuxue, Du Yan, Xiao Zhijian, Huang Jian, Wang Jingzhu, Wang Yiwei} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 3.{Zhong Yuxue, Du Yan, Qiu Rundi, Xiao Zhijian, Huang Jian, Wang Zhiying, Wang Jingzhu, Wang Yiwei} 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	Zhong YX,Du Y,Qiu RD,et al. Seal types of water-entry cavities generated by the impact of spheres with decreasing Bond number[J]. ACTA MECHANICA SINICA, 6,2023,39:322482.
APA	钟玉雪.,杜岩.,丘润荻.,肖志坚.,黄荐.,...&王一伟.(2023).Seal types of water-entry cavities generated by the impact of spheres with decreasing Bond number.ACTA MECHANICA SINICA,39,322482.
MLA	钟玉雪,et al."Seal types of water-entry cavities generated by the impact of spheres with decreasing Bond number".ACTA MECHANICA SINICA 39(2023):322482.