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Title: Variation of added mass and its application to the calculation of amplitude response for a circular cylinder
Author: Wang Y(王艺); Chen WM(陈伟民); Lin M(林缅)
Source: China Ocean Engineering
Issued Date: 2007
Volume: 21, Issue:3, Pages:429-437
Abstract: In the present study, analyzed are the variation of added mass for a circular cylinder in the lock-in ( synchronization) range of vortex-induced vibration (VIV) and the relationship between added mass and natural frequency. A theoretical minimum value of the added mass coefficient for a circular cylinder at lock-in is given. Developed are semi-empirical formulas for the added mass of a circular cylinder at lock-in as a function of flow speed and mass ratio. A comparison between experiments and numerical simulations shows that the semi-empirical formulas describing the variation of the added mass for a circular cylinder at lock-in are better than the ideal added mass. In addition, computation models such as the wake oscillator model using the present formulas can predict the amplitude response of a circular cylinder at lock-in more accurately than those using the ideal added mass.
Keyword: Vortex-Induced Vibration ; Added Mass ; Lock-In ; Mass Ratio ; Natural Frequency ; Vortex-Induced Vibrations ; Induced Oscillation ; Fluid Forces ; Prediction ; Frequency
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Chen, WM (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
Correspondent Email: wmchen@imech.ac.cn
DOC Type: Article
WOS Subject: Engineering, Civil ; Engineering, Ocean ; Engineering, Mechanical ; Water Resources
WOS Subject Extended: Engineering ; Water Resources
WOS Keyword Plus: VORTEX-INDUCED VIBRATIONS ; INDUCED OSCILLATION ; FLUID FORCES ; PREDICTION ; FREQUENCY
WOS ID: WOS:000249867600005
ISSN: 0890-5487
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/33907
Appears in Collections:力学所知识产出(1956-2008)_期刊论文

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