A general two-phase turbulent flow model applied to the study of sediment transport in open channels
文献类型：期刊论文
| 作者 | Chen X ; Li Y(李勇); Niu XJ; Li M; Chen DY; Yu XP
|
| 刊名 | International Journal of Multiphase Flow
 |
| 出版日期 | 2011 |
| 卷号 | 37期号:9页码:1099-1108 |
| 通讯作者邮箱 | yuxiping@tsinghua.edu.cn |
| 关键词 | Two-Phase Flow Sediment Transport Numerical Model Model Verification Suspended-Sediment Mathematical-Model Rotational Flow Sheet Flow Particles Force Laden Body Beds |
| ISSN号 | 0301-9322 |
| 产权排序 | [Chen, Xin; Niu, Xiaojing; Yu, Xiping] Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China; [Li, Yong] Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China; [Li, Ming; Chen, Daoyi] Univ Liverpool, Sch Engn, Liverpool L69 3BX, Merseyside, England |
| 通讯作者 | Yu, XP (reprint author), Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China |
| 合作状况 | 国际 |
| 中文摘要 | A numerical model for the general description of the sediment-laden flow is developed based on an Euler-Euler approach of the two-phase turbulent flow theory. The basic equations of the model are the Reynolds averaged equations of motion for both the fluid and the sediment phase in addition to the Reynolds averaged continuity equations for the mixture and for the sediment phase. The fluid phase and the sediment phase are coupled through their interaction forces including resistance force, inertia force, and lift force. Turbulence closure of the fluid phase is based on the conventional k-epsilon model while an algebraic particle turbulence model is applied to the sediment phase. The numerical method is based on the modified SIMPLE scheme. The model is applied to the computation of saturated sediment-laden flows and also the non-equilibrium transport of sediment by unidirectional flows under simple erosion and simple deposition conditions. The numerical results are well verified by the available experimental data. The vertical velocity of the sediment phase is also shown to be in very good agreement with the fall velocity of the sediment particles, which strongly support the assumption of Rouse's diffusion theory for suspended sediment under steady state. (C) 2011 Elsevier Ltd. All rights reserved. |
| 学科主题 | Mechanics |
| 分类号 | 二类 |
| 类目[WOS] | Mechanics |
| 研究领域[WOS] | Mechanics |
| 关键词[WOS] | SUSPENDED-SEDIMENT ; MATHEMATICAL-MODEL ; ROTATIONAL FLOW ; SHEET FLOW ; PARTICLES ; FORCE ; LADEN ; BODY ; BEDS |
| 收录类别 | SCI ; EI |
| 资助信息 | This work was partially supported by State Key Laboratory of Hydroscience and Engineering, MOST, China under Grant No. 2011-KY-1 and by Natural Science Foundation of China (NSFC) under Grant No. 10772099. The first author also thanks China Scholarship Council (CSC) for providing him an opportunity to visit School of Engineering, University of Liverpool, UK for 1 year, and he would also like to thank Mrs. Martin Grace at University of Liverpool for her kind help during his stay in UK. |
| 原文出处 | http://dx.doi.org/10.1016/j.ijmultiphaseflow.2011.05.013 |
| 语种 | 英语 |
| WOS记录号 | WOS:000295242200009 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44995]  |
| 专题 | 力学研究所_环境力学重点实验室(2009-2011) |
| 推荐引用方式 GB/T 7714 | Chen X,Li Y,Niu XJ,et al. A general two-phase turbulent flow model applied to the study of sediment transport in open channels[J]. International Journal of Multiphase Flow,2011,37(9):1099-1108. |
| APA | Chen X,Li Y,Niu XJ,Li M,Chen DY,&Yu XP.(2011).A general two-phase turbulent flow model applied to the study of sediment transport in open channels.International Journal of Multiphase Flow,37(9),1099-1108. |
| MLA | Chen X,et al."A general two-phase turbulent flow model applied to the study of sediment transport in open channels".International Journal of Multiphase Flow 37.9(2011):1099-1108. |
入库方式： OAI收割
来源：力学研究所
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