Evolution of Energy in Submerged Granular Column Collapse

doi:10.1088/0256-307X/37/7/074502

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-)

	Evolution of Energy in Submerged Granular Column Collapse
	Zhang WT(张炆涛)2,3; An Y(安翼)2; Liu QQ(刘青泉)1; Wang XL(王晓亮)1; Sun YH 1
刊名	CHINESE PHYSICS LETTERS
	2020-06-01
卷号	37 期号:7 页码:5
关键词	45 70 Mg 47 55 Kf 47 57 Gc
ISSN号	0256-307X
DOI	10.1088/0256-307X/37/7/074502
英文摘要	The evolution of energy in subaerial and subaqueous granular column collapses is studied. Employing the refractive index matching method and planar laser-induced fluorescence technique, we obtain granular and liquid images simultaneously in a single experiment of subaqueous flow. Particle image velocimetry and particle tracking velocimetry are used to process the data for the fluid and granular phase. We find stepwise decreases in the total kinetic energy of the granular material. The stage of rapidly falling energy corresponds to large transverse changes in the direction of the massive granular particles. Moreover, in this stage, a major fraction of the granular kinetic energy transferred from the granular potential energy is lost or transferred. Interestingly, compared with dry granular flow, the existence of an ambient liquid seems to reduce the total dissipated energy, which may be the reason why previous studies observed similar granular runout distances in subaqueous and dry granular collapses.
分类号	Q3
WOS关键词	DEM
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000553032800001
资助机构	National Natural Science Foundation of China[11872117] ; National Natural Science Foundation of China[11672310] ; National Natural Science Foundation of China[11602278] ; National Key Research and Development Program of China[2016YFC0303708]
其他责任者	Liu, Qing-Quan
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/84779]
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.Beijing Inst Technol, Dept Mech, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
推荐引用方式 GB/T 7714	Zhang WT,An Y,Liu QQ,et al. Evolution of Energy in Submerged Granular Column Collapse[J]. CHINESE PHYSICS LETTERS,2020,37(7):5.
APA	张炆涛,安翼,刘青泉,王晓亮,&Sun YH.(2020).Evolution of Energy in Submerged Granular Column Collapse.CHINESE PHYSICS LETTERS,37(7),5.
MLA	张炆涛,et al."Evolution of Energy in Submerged Granular Column Collapse".CHINESE PHYSICS LETTERS 37.7(2020):5.