A modified nonlocal rheology model for dense granular flow

doi:10.6052/0459-1879-15-287

	A modified nonlocal rheology model for dense granular flow
	Ye, Xiaoyan; Wang, Dengming; Zheng, Xiaojing
刊名	力学学报
	2016-01-18
卷号	48 期号:1 页码:40-47
关键词	应力波动修正的非局部流变模型体积分数概率密度分布
ISSN号	0459-1879
DOI	10.6052/0459-1879-15-287
其他题名	基于应力波动的修正非局部流变模型
文献子类	Article
英文摘要	In dense granular flows, a non-local rheology theory was proposed by Pouliquen et al. based on the idea of a self-activated process, in which a rearrangement at one position will be trigged by stress fluctuation due to rearrangements elsewhere in the material. Taking into account the probability density distribution of stress fluctuation amplitude in granular materials and the coupling effect between shear rate and volume fraction in iterative calculation, a modified non-local rheological model was proposed in order to describe the dense granular flow more accurately. Due that dense granular flows down inclines preserve this complexity but remain simple enough for detailed analysis, this modified model was applied to predict the rheological characteristics of flows down a rough inclined plane. Compared to the previous non-local rheological model, the predicted results based on the present modified model, including the critical thickness, depth-averaged velocity and shear rate profile, are quantitatively better consistent with the existing experimental and simulating results. © 2016, Editorial Office of Chinese Journal of Theoretical and Applied Mechanics. All right reserved.
学科主题	Fluid Flow, General ; Thermodynamics ; Probability Theory ; Materials Science
出版地	BEIJING
资助项目	国家自然科学基金项目 ; 国家科技支撑计划 ; 中国博士后科学基金 ; 中央高校基本科研业务费专项资金
项目编号	国家科技支撑项目 ; 国家自然科学基金 ; 兰州大学中央高校基本科研业务费专项基金 ; 国家教育部科学基金 ; 中国博士后基金 ; 兰州大学西部灾害与环境力学教育部重点实验室开放基金
语种	中文
CSCD记录号	CSCD:5642509
资助机构	NSFC ; MOST ; MOE ; CPSF ; LZU
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182490]
专题	土木工程与力学学院_期刊论文
推荐引用方式 GB/T 7714	Ye, Xiaoyan,Wang, Dengming,Zheng, Xiaojing. A modified nonlocal rheology model for dense granular flow[J]. 力学学报,2016,48(1):40-47.
APA	Ye, Xiaoyan,Wang, Dengming,&Zheng, Xiaojing.(2016).A modified nonlocal rheology model for dense granular flow.力学学报,48(1),40-47.
MLA	Ye, Xiaoyan,et al."A modified nonlocal rheology model for dense granular flow".力学学报 48.1(2016):40-47.