IMECH-IR  > 流固耦合系统力学重点实验室
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); Yang, XF (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationPHYSICAL REVIEW E
2014-12-15
Volume90Issue:6Pages:63011
ISSN1539-3755
AbstractThis 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.
Subject AreaPhysics
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000346382700010
Funding OrganizationWe 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).
DepartmentLMFS冲击与耦合效应(LHO)
Classification一类
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Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49495
Collection流固耦合系统力学重点实验室
Corresponding AuthorYang, XF (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Yang XF,Liu MB,Peng SL,et al. 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,&Yang, XF .(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.
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