Granular temperature in a boundary-driven oscillating granular inclined flow

doi:10.1063/5.0069777

	Granular temperature in a boundary-driven oscillating granular inclined flow
	Yang, Guanghui 1,2; Zhang, Sheng 1,2; Lin, Ping 1,2
刊名	PHYSICS OF FLUIDS
	2022
卷号	34 期号:1 页码:9
ISSN号	1070-6631
DOI	10.1063/5.0069777
通讯作者	Zhang, Sheng(zhangsheng@impcas.ac.cn)
英文摘要	An inclined granular flow on an ordered bottom presents complex behaviors. With a moderate inclination angle, a complete oscillation period contains a developing ordered flow, a sustained disordered flow, and two transitions: ordered-disordered (O-D) transition and disordered-ordered (D-O) transition, respectively. Unlike other granular systems, this ordered flow in our case is unstable and breaks down owing to a shear-induced explosion, where the velocity distribution vs depth develops from Newtonian type to Bagnold type. For the disordered flow case, a Bagnold-type bulk flow maintains above the "hot " basal layer. A detailed analysis shows that the O-D transition starts from a heating, which appears at the surface, and the disordering transports downwards to the basal layer with a granular temperature scaled by pressure T/P for local disordering. A shear-induced dilation in a basal layer produces an "explosion. " For the D-O transition, an ordering occurs in the basal layer with another scaled granular temperature T/P and then the ordering transports upward to the top surface.
资助项目	National Natural Science Foundation of China[11705256] ; National Natural Science Foundation of China[11905272] ; Young Scholar of CAS Light of West China Program[2018-98]
WOS关键词	EQUATION-OF-STATE ; INELASTIC SPHERES ; CHUTE FLOWS ; SIMULATION ; PLANE ; TRANSITION ; PARTICLES ; PACKINGS ; DYNAMICS ; FRICTION
WOS研究方向	Mechanics ; Physics
语种	英语
出版者	AIP Publishing
WOS记录号	WOS:000747608600007
资助机构	National Natural Science Foundation of China ; Young Scholar of CAS Light of West China Program
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/142266]
专题	中国科学院近代物理研究所
通讯作者	Zhang, Sheng
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Guanghui,Zhang, Sheng,Lin, Ping. Granular temperature in a boundary-driven oscillating granular inclined flow[J]. PHYSICS OF FLUIDS,2022,34(1):9.
APA	Yang, Guanghui,Zhang, Sheng,&Lin, Ping.(2022).Granular temperature in a boundary-driven oscillating granular inclined flow.PHYSICS OF FLUIDS,34(1),9.
MLA	Yang, Guanghui,et al."Granular temperature in a boundary-driven oscillating granular inclined flow".PHYSICS OF FLUIDS 34.1(2022):9.