Coupled DEM-LBM simulation of internal fluidisation induced by a leaking pipe
文献类型：期刊论文
| 作者 | Chan, Andrew4; Cui, Xilin2; Chapman, David1; Li, Jun3 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2014 |
| 卷号 | 254页码:299-306 |
| 关键词 | Fluidisation Discrete Element Method (DEM) Lattice Boltzmann Method (LBM) Pipe leakage Leakage-soil interaction Ergun flow equation |
| ISSN号 | 0032-5910 |
| DOI | 10.1016/j.powtec.2014.01.048 |
| 英文摘要 | This paper presents a numerical study of soil fluidisation induced by local leakage from a buried pipe using the coupled discrete element and lattice Boltzmann approach (DEM-LBM). The behaviour of the system is studied using different flow rates and initial bed heights. The excess pore pressure distribution and the soil behaviour due to a localised leak are investigated and compared with previous experimental findings. The comparison indicates that DEM-LBM is capable of capturing the leakage-soil interaction at the particle scale. Moreover, as the flow distribution is found to be one-dimensional in the radial direction rather than one-dimensional in the vertical direction, an extension to the Ergun flow equation is derived and the numerically measured fluidising pressure shows good agreement with this analytical solution. In addition, as indicated by the numerical results and the derived analytical solution, the relationship between fluidising pressure and pipe buried depth as well as leak size is also established. The simulation results suggest that DEM-LBM is a promising tool to carry out further studies into the internal fluidisation phenomenon. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000333883800036 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3574]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Univ Birmingham, Sch Civil Engn 2.Hubei Univ Technol, Sch Civil Engn & Architecture ; 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 4.Univ Ballarat, Sch Sci Informat Technol & Engn; |
| 推荐引用方式 GB/T 7714 | Chan, Andrew,Cui, Xilin,Chapman, David,et al. Coupled DEM-LBM simulation of internal fluidisation induced by a leaking pipe[J]. POWDER TECHNOLOGY,2014,254:299-306. |
| APA | Chan, Andrew,Cui, Xilin,Chapman, David,&Li, Jun.(2014).Coupled DEM-LBM simulation of internal fluidisation induced by a leaking pipe.POWDER TECHNOLOGY,254,299-306. |
| MLA | Chan, Andrew,et al."Coupled DEM-LBM simulation of internal fluidisation induced by a leaking pipe".POWDER TECHNOLOGY 254(2014):299-306. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
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。