A general two-phase turbulent flow model applied to the study of sediment transport in open channels

doi:10.1016/j.ijmultiphaseflow.2011.05.013

IMECH-IR > 环境力学重点实验室(2009-2011)

	A general two-phase turbulent flow model applied to the study of sediment transport in open channels
	Chen X; Li Y(李勇); Niu XJ; Li M; Chen DY; Yu XP; Yu, XP (reprint author), Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China
发表期刊	International Journal of Multiphase Flow
	2011
卷号	37 期号:9 页码:1099-1108
ISSN	0301-9322
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.
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
学科领域	Mechanics
DOI	10.1016/j.ijmultiphaseflow.2011.05.013
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000295242200009
关键词[WOS]	SUSPENDED-SEDIMENT ; MATHEMATICAL-MODEL ; ROTATIONAL FLOW ; SHEET FLOW ; PARTICLES ; FORCE ; LADEN ; BODY ; BEDS
WOS研究方向	Mechanics
WOS类目	Mechanics
项目资助者	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.
课题组名称	LMFS海洋环境与工程(LEM)
论文分区	二类
引用统计	被引频次：41[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/44995
专题	环境力学重点实验室(2009-2011)
通讯作者	Yu, XP (reprint author), Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China
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.

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