Effect of internal flow on vortex-induced vibration dynamics of a flexible mining riser in external shear current

doi:10.1016/j.marstruc.2021.103094

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-)

	Effect of internal flow on vortex-induced vibration dynamics of a flexible mining riser in external shear current
	Duan, Jinlong 4; Zhou, Jifu 3,4; You, Yunxiang 1,2; Wang, Xu 4
刊名	MARINE STRUCTURES
	2021-11-01
卷号	80 页码:25
关键词	Vortex-induced vibration Internal flow Time domain prediction method External shear current
ISSN号	0951-8339
DOI	10.1016/j.marstruc.2021.103094
通讯作者	Zhou, Jifu(zhoujf@imech.ac.cn)
英文摘要	Vortex-induced vibration (VIV) of flexible risers with both internal and external flows has received much attention recently. Hence, VIV dynamics of a fluid-conveying flexible riser subjected to external shear current is investigated. The effect of internal flow velocity and fluid density on VIV response is mainly examined and analyzed. A time domain model is introduced and elaborated. Then the finite element method is adopted to discretize the governing equations. Firstly, the model is validated based on the comparison between the numerical and experimental results. Then the influence of the internal flow velocity and fluid density on VIV dynamics is studied. The results show that multi-frequency response occurs when the flexible riser with various internal flow velocities and densities is subjected to external shear current. Under same shear current velocity, the IL mean deflection is enlarged with the increase of the internal flow velocity and fluid density. In addition, the internal flow velocity and fluid density have an evident effect on the vibrating frequency and the root mean square (RMS) displacement in both in-line (IL) and cross-flow (CF) directions. Moreover, mode and frequency transitions can be observed under different internal flow velocities and fluid densities.
资助项目	National Natural Science Foundation of China[12132018] ; National Natural Science Foundation of China[11972352] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22040304]
WOS关键词	PIPES CONVEYING FLUID ; TIME-DOMAIN SIMULATION ; LABORATORY MEASUREMENTS ; CIRCULAR-CYLINDER
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000706130600002
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/87599]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Zhou, Jifu
作者单位	1.Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.Inst Mech, CAS Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Duan, Jinlong,Zhou, Jifu,You, Yunxiang,et al. Effect of internal flow on vortex-induced vibration dynamics of a flexible mining riser in external shear current[J]. MARINE STRUCTURES,2021,80:25.
APA	Duan, Jinlong,Zhou, Jifu,You, Yunxiang,&Wang, Xu.(2021).Effect of internal flow on vortex-induced vibration dynamics of a flexible mining riser in external shear current.MARINE STRUCTURES,80,25.
MLA	Duan, Jinlong,et al."Effect of internal flow on vortex-induced vibration dynamics of a flexible mining riser in external shear current".MARINE STRUCTURES 80(2021):25.