Flow models of fluidized granular masses with different basal resistance terms
文献类型:期刊论文
| 作者 | Wu, Hengbin1,2; Jiang, Yuanjun3 ; Zhang, Xuefu2
|
| 刊名 | GEOMECHANICS AND ENGINEERING
![]() |
| 出版日期 | 2015-06-01 |
| 卷号 | 8期号:6页码:811-828 |
| 关键词 | granular flow avalanche dynamics basal resistance terms deposition process |
| ISSN号 | 2005-307X |
| 通讯作者 | Wu, Hengbin |
| 英文摘要 | Proper modelling of the basal resistance terms is key in simulating the motion of fluidized granular flow. In this paper, standard depth-averaged governing equations of granular flow are used together with the classical Coulomb, Voellmy, and velocity dependent friction models (VDFM). A high-resolution modified TVDLF method is implemented to solve the partial differential equations without numerical oscillations. The effects of basal resistance terms on the motion of granular flows such as geometric shape evolution, travel times and final deposits are analyzed. Based on the numerical results, the predictions of the front and rear end positions and developing length of granular flow with Coulomb friction model show excellent agreements with experiment results reported by Hutter et al. (1995), and illustrate the validity of the numerical approach. For the Voellmy model, the higher value of turbulent coefficient than reality may obtain more reasonable predicted runout for the small-scale avalanche or granular flow. The energy exchange laws indicate that VDFM is different from the Coulomb and Voellmy models, although the flow characteristics of both three models fit the measurements and observations very well. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Civil ; Engineering, Geological |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | ROUGH INCLINED PLANES ; DEBRIS FLOWS ; AVALANCHES ; DYNAMICS ; RUNOUT ; SIMULATIONS ; LANDSLIDES ; TOPOGRAPHY ; INITIATION ; VELOCITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000364101900005 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/13835] ![]() |
| 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.Chongqing Three Gorges Univ, Coll Civil Engn, Chongqing, Peoples R China 2.Chongqing Jiaotong Univ, State Key Lab Breeding Base Mt Bridge & Tunnel En, Chongqing, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Hengbin,Jiang, Yuanjun,Zhang, Xuefu. Flow models of fluidized granular masses with different basal resistance terms[J]. GEOMECHANICS AND ENGINEERING,2015,8(6):811-828. |
| APA | Wu, Hengbin,Jiang, Yuanjun,&Zhang, Xuefu.(2015).Flow models of fluidized granular masses with different basal resistance terms.GEOMECHANICS AND ENGINEERING,8(6),811-828. |
| MLA | Wu, Hengbin,et al."Flow models of fluidized granular masses with different basal resistance terms".GEOMECHANICS AND ENGINEERING 8.6(2015):811-828. |
入库方式: OAI收割
来源:成都山地灾害与环境研究所
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。


