中国科学院力学研究所机构知识库
Advanced  
IMECH-IR  > 流固耦合系统力学重点实验室(2012-)  > 会议论文
Title: Bending modes and transition criteria for a flexible fiber in viscous flows
Author: Yang XF(杨秀峰); Liu MB(刘谋斌)
Issued Date: 2016
Conference Name: 第二届全球华人水动学学术会议/2nd Conference of Global Chinese Scholars on Hydrodynamics (CCSH '2016)
Conference Date: NOV 11-14, 2016
Conference Place: 中国江苏无锡/Wuxi, PEOPLES R CHINA
Abstract: The present paper follows our previous Work [Yang et al. Physical Review E, vol. 90 (2014) 063011] in which a coupling approach of smoothed particle hydrodynamics (SPH) and element bending group (EBG) was developed for modeling the interaction of viscous incompressible flows with flexible fibers. It was also shown that a flexible object may experience drag reduction because of its reconfiguration due to fluid force on it. However, the reconfiguration of deformable bodies does not always result in drag reduction as different deformation patterns can result in different drag scales. In the present work, we studied the bending modes of a flexible fiber in viscous flows using the presented SPH and EBG coupling approach. The flexible fiber is immersed in a fluid and is tethered at its center point, while the two ends of the fiber are free to move. We showed that the fiber undergoes four different bending modes: stable U-shape, slight swing, violent flapping, and stable closure modes. We found there is a transition criterion for the flexible fiber from slight swing, suddenly to violent flapping. We defined a bending number to characterize the bending dynamics of the interaction of flexible fiber with viscous fluid and revealed that this bending number is relevant to the non-dimensional fiber length. We also identified the critical bending number from slight swing mode to violent flapping mode.
Keyword: Smoothed particle hydrodynamics (SPH) ; fluid-structure interaction ; flexible fiber ; drag reduction ; SMOOTHED PARTICLE HYDRODYNAMICS ; DRAG REDUCTION ; FLOW ; SPH ; RECONFIGURATION
Indexed Type: CPCI-S ; SCI ; EI
Corresponding Author: Liu, MB (reprint author), Peking Univ, Coll Engn, Beijing 100871, Peoples R China. ; Liu, MB (reprint author), Peking Univ, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China.
Related URLs: 查看原文
Source: 第二届全球华人水动力学学术会议论文集(下册) 2016/Proceedings of the Second Conference of Global Chinese Scholars on Hydrodynamics (CCSH'2016), Vols 1 & 2
Language: 英语
WOS ID: WOS:000389297200042
ISBN: 978-7-5027-9607-5
Citation statistics:
Content Type: 会议论文
URI: http://dspace.imech.ac.cn/handle/311007/60197
Appears in Collections:流固耦合系统力学重点实验室(2012-)_会议论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Cp2016-021.pdf(1182KB)会议论文--开放获取View Download
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[杨秀峰]'s Articles
[刘谋斌]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[杨秀峰]‘s Articles
[刘谋斌]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Cp2016-021.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院力学研究所 - Feedback
Powered by CSpace