Oscillatory flow at the onset of convection in two-layer Bénard-Marangoni system

IMECH-IR > 微重力重点实验室

	Oscillatory flow at the onset of convection in two-layer Bénard-Marangoni system
	Kang Q(康琦); Li LJ(李陆军); Duan L(段俐); Hu WR(胡文瑞); Kang, Q. (kq@imech.ac.cn)
会议录名称	60th International Astronautical Congress 2009, IAC 2009
	2009
会议名称	60th International Astronautical Congress 2009, IAC 2009
会议日期	October 12, 2009 - October 16, 2009
会议地点	Daejeon, Korea, Republic of
摘要	In this paper, the time-dependent Be´nard-Marangoni convections of two-layer fluid at the onset of convection are investigated experimentally. The flows are visualized from side with particle image velocimetry (PIV) and structure change of velocity fields near onset of convection are observed while the depth ratio varies in a range. The variation of the critical temperature difference with the depth ratio shows that the "peak depth ratio" is very far from the "balancing depth ratio"; the oscillatory onsets from stationary were obtained in a big gap of depth ratio in which the "peak depth ratio" located. These results don't agree with the predications of the linear stability analysis.
关键词	Critical Temperature Difference Depth Ratio Marangoni Marangoni Convection Onset Of Convection Oscillatory Flows Particle Image Velocimetries Structure Change Time-dependent Two Layer Fluid Two Layers Velocity Field
ISBN号	9781615679089
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60459
专题	微重力重点实验室
通讯作者	Kang, Q. (kq@imech.ac.cn)
推荐引用方式 GB/T 7714	Kang Q,Li LJ,Duan L,et al. Oscillatory flow at the onset of convection in two-layer Bénard-Marangoni system[C]60th International Astronautical Congress 2009, IAC 2009,2009.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Ca2009-058.pdf（27KB）	会议论文		开放获取	CC BY-NC-SA	浏览下载