Smoothed particle hydrodynamics and element bending group modeling of flexible fibers interacting with viscous fluids

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Smoothed particle hydrodynamics and element bending group modeling of flexible fibers interacting with viscous fluids
	Yang XF(杨秀峰); Liu MB(刘谋斌); Peng SL(彭世镠)
刊名	PHYSICAL REVIEW E
	2014-12-15
通讯作者邮箱	yangxf@imech.ac.cn; mbliu@pku.edu.cn
卷号	90 期号:6 页码:63011
ISSN号	1539-3755
通讯作者	Yang, XF (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
产权排序	[Yang, Xiufeng; Peng, Shiliu] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; [Liu, Moubin] Peking Univ, Coll Engn, Beijing 100187, Peoples R China
合作状况	国内
中文摘要	This paper presents a smoothed particle hydrodynamics (SPH) and element bending group (EBG) coupling method for modeling the interaction of flexible fibers with moving viscous fluids. SPH is a well-developed mesh-free particle method for simulating viscous fluid flows. EBG is also a particle method for modeling flexible bodies. The interaction of flexible fibers with moving viscous fluids is rendered through the interaction of EBG particles for flexible fiber and SPH particles for fluid. In numerical simulation, flexible fibers of different lengths are immersed in a moving viscous fluid driven by a body force. The drag force on the fiber obtained from SPH-EBG simulation agrees well with experimental observations. It is shown that the flexible fiber demonstrates three typical bending modes, including the U-shaped mode, the flapping mode, and the closed mode, and that the flexible fiber experiences a drag reduction due to its reconfiguration by bending. It is also found that the U-4/3 drag scaling law for a flexible fiber is only valid for the U-shaped mode, but not valid for the flapping and closed modes. The results indicate that the reconfiguration of a flexible fiber is caused by the fluid force acting on it, while vortex shedding is of importance in the translations of bending modes.
学科主题	Physics
分类号	一类
收录类别	SCI ; EI
资助信息	We thank Professor S. Alben for providing us with the experimental data in Fig. 9. This work was supported by the National Natural Science Foundation of China (Grants No. 11302237 and No. 11172306).
原文出处	http://dx.doi.org/10.1103/PhysRevE.90.063011
语种	英语
WOS记录号	WOS:000346382700010
公开日期	2015-01-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49495]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Yang XF,Liu MB,Peng SL. Smoothed particle hydrodynamics and element bending group modeling of flexible fibers interacting with viscous fluids[J]. PHYSICAL REVIEW E,2014,90(6):63011.
APA	Yang XF,Liu MB,&Peng SL.(2014).Smoothed particle hydrodynamics and element bending group modeling of flexible fibers interacting with viscous fluids.PHYSICAL REVIEW E,90(6),63011.
MLA	Yang XF,et al."Smoothed particle hydrodynamics and element bending group modeling of flexible fibers interacting with viscous fluids".PHYSICAL REVIEW E 90.6(2014):63011.