Generalized friction and dilatancy laws for immersed granular flows consisting of large and small particles
文献类型：期刊论文
| 作者 | Cui, Kahlil F. E.2,4; Zhou, Gordon G. D.2,3,4 ; Jing, Lu1; Chen, Xiaoqing2,3,4; Song, Dongri2,4
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| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2020 |
| 卷号 | 32期号:11页码:113312 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0024762 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The motion of fully immersed granular materials, composed of two distinct particle sizes, flowing down rough inclined planes is studied through fluid-particle numerical simulations. We focus on the effect of ambient fluids, as well as their interplay with particle size segregation, on the steady-state kinematic and rheological profiles of the granular-fluid mixture flow. Simulation results are analyzed in the framework of a visco-inertial rheological model, which is first validated in monodisperse flows with a wide range of the ambient fluid viscosity (i.e., from air to water and slurry) and then generalized for size-bidisperse mixtures. It is found that the local effective friction and volume fraction of mixtures with different particle sizes can be approximated from the rheology of single-component flows. While the presence of viscous ambient fluids slows down size segregation (perpendicular to the flow) depending on the mixture composition and flow viscosity, the effective bulk friction is shown to be independent of the state and progress of segregation. |
| 电子版国际标准刊号 | 1089-7666 |
| 语种 | 英语 |
| WOS记录号 | WOS:000595634500002 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/54930]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China 2.Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610000, China; 3.China–Pakistan Joint Research Center on Earth Sciences, CAS-HEC; 4.University of Chinese Academy of Sciences, Beijing 100000, China; |
| 推荐引用方式 GB/T 7714 | Cui, Kahlil F. E.,Zhou, Gordon G. D.,Jing, Lu,et al. Generalized friction and dilatancy laws for immersed granular flows consisting of large and small particles[J]. PHYSICS OF FLUIDS,2020,32(11):113312. |
| APA | Cui, Kahlil F. E.,Zhou, Gordon G. D.,Jing, Lu,Chen, Xiaoqing,&Song, Dongri.(2020).Generalized friction and dilatancy laws for immersed granular flows consisting of large and small particles.PHYSICS OF FLUIDS,32(11),113312. |
| MLA | Cui, Kahlil F. E.,et al."Generalized friction and dilatancy laws for immersed granular flows consisting of large and small particles".PHYSICS OF FLUIDS 32.11(2020):113312. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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