Multi-flexible fiber flows: A direct-forcing immersed boundary lattice-Boltzmann lattice-spring approach

doi:10.1016/j.ijmultiphaseflow.2017.11.008

IMECH-IR > 非线性力学国家重点实验室

	Multi-flexible fiber flows: A direct-forcing immersed boundary lattice-Boltzmann lattice-spring approach
	Tang YH ; Wu TH ; He GW(何国威); Qi DW
发表期刊	INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
	2018-02-01
卷号	99 页码:408-422
ISSN	0301-9322
摘要	We demonstrate that a lattice-Boltzmann lattice-spring method can be used to simulate a dynamic behavior of a suspension of a large number of flexible fibers in finite Reynolds number flows. In the method, lattice-Boltzmann equation is adopted to simulate fluid velocity and vorticity while lattice-spring model with three-body forces can be employed to model the bending deformation of solid bodies. In order to realize the non-slip boundary condition, a forcing term is simply calculated by using the Newtonian second law and imposed with an immersed boundary scheme. The method is validated by comparing the present results with experiments and existing theories and methods. Subsequently, the method is applied to simulate a dynamic process of flexible fibers settling on a static or moving screen/wire net while a fiber mat is simultaneously built over the screen and resists fluid flowing. The number of fibers, fiber density and flexibility, and ratio of the relative velocity of the screen/wire to fluid can be systematically varied at different levels. Their influences on drainage rate are computed and evaluated. (C) 2017 Elsevier Ltd. All rights reserved.
关键词	Lattice Boltzmann equation Lattice spring model Flexible fibers Fiber network Drainage rate Immersed boundary method Rigidity Flexibility
DOI	10.1016/j.ijmultiphaseflow.2017.11.008
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000424316600028
关键词[WOS]	DIRECT NUMERICAL-SIMULATION ; REYNOLDS-NUMBER FLOWS ; PARTICULATE FLOWS ; ELASTIC PARTICLES ; DOMAIN METHOD ; SUSPENSIONS ; EQUATION ; SEDIMENTATION ; SPHEROIDS ; RHEOLOGY
WOS研究方向	Mechanics
WOS类目	Mechanics
项目资助者	National Science Foundation of USA [1126438] ; National Natural Science Foundation of China (NNSFC) [11232011] ; National Basic Research Program of China (973 Program) [201303834100]
论文分区	二类/Q1
力学所作者排名	3
引用统计	被引频次：10[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/311007/77885
专题	非线性力学国家重点实验室
作者单位	1.[Tang, Yihsin 2.Wu, Tai-Hsien 3.Western Michigan Univ, Dept Chem & Paper Engn, Kalamazoo, MI 49009 USA 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Tang YH,Wu TH,He GW,et al. Multi-flexible fiber flows: A direct-forcing immersed boundary lattice-Boltzmann lattice-spring approach[J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,2018,99:408-422.
APA	Tang YH,Wu TH,何国威,&Qi DW.(2018).Multi-flexible fiber flows: A direct-forcing immersed boundary lattice-Boltzmann lattice-spring approach.INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,99,408-422.
MLA	Tang YH,et al."Multi-flexible fiber flows: A direct-forcing immersed boundary lattice-Boltzmann lattice-spring approach".INTERNATIONAL JOURNAL OF MULTIPHASE FLOW 99(2018):408-422.

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