An experimental research on surface oscillation of buoyant-thermocapillary convection in open cylindrical annuli

	An experimental research on surface oscillation of buoyant-thermocapillary convection in open cylindrical annuli
	Zhang L; Duan L(段俐); Kang Q(康琦)
刊名	Acta Mechanica Sinica
	2014-10
通讯作者邮箱	kq@imech.ac.cn
卷号	30 期号:5 页码:681-686
关键词	Cylindrical annulus Buoyant-thermocapillary convection Surface oscillation Critical temperature difference
ISSN号	0567-7718
通讯作者	Kang, Q (reprint author), Chinese Acad Sci, Natl Micrograv Lab, Inst Mech, Beijing 100190, Peoples R China.
产权排序	[Zhang, Li; Duan, Li; Kang, Qi] Chinese Acad Sci, Natl Micrograv Lab, Inst Mech, Beijing 100190, Peoples R China
合作状况	国内
中文摘要	An experiment is carried out on the surface oscillation of buoyant-thermocapillary convection in an open cylindrical annulus. When the radial temperature difference Delta T reaches a critical value Delta T (c), a regular oscillation appears and soon disappears on the open surface, which varies when the liquid layer's thickness h and temperature difference Delta T are varied. With growth of Delta T, dominant frequency of the visible oscillation will grow too but is found within certain frequencies. Driving forces, buoyance and thermocapillarity, are responsible for this phenomanon and the "balance" point is considered to exist when h is between 4.5-5.0mm. Surface oscillation region is also found restricted within a narrow gap when Bo is smaller than 3.7.
学科主题	Engineering; Mechanics
分类号	二类
收录类别	SCI ; EI ; CSCD
资助信息	The project was supported by the National Natural Science Foundation of China (11032011 and 10972224) and Knowledge Innovation Program of Chinese Academy of Sciences (KJCX2-YW-L08).
原文出处	http://dx.doi.org/10.1007/s10409-014-0073-2
语种	英语
WOS记录号	WOS:000344382200007
公开日期	2014-12-18
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49385]
专题	力学研究所_国家微重力实验室
推荐引用方式 GB/T 7714	Zhang L,Duan L,Kang Q. An experimental research on surface oscillation of buoyant-thermocapillary convection in open cylindrical annuli[J]. Acta Mechanica Sinica,2014,30(5):681-686.
APA	Zhang L,段俐,&康琦.(2014).An experimental research on surface oscillation of buoyant-thermocapillary convection in open cylindrical annuli.Acta Mechanica Sinica,30(5),681-686.
MLA	Zhang L,et al."An experimental research on surface oscillation of buoyant-thermocapillary convection in open cylindrical annuli".Acta Mechanica Sinica 30.5(2014):681-686.