Vortex-induced rotational vibration of an eccentric circular cylinder at low Reynolds number of 100

被引：0
作者：
Xu Sun
Yi-Xin Zhang
Meng-Meng Tao
Dong-Xu Han
Jun Xiao
机构：
[1] China University of Petroleum-Beijing,National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering
[2] Beijing Institute of Petrochemical Technology,Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil & Gas Development
[3] Hefei General Machinery Research Institute,State Key Laboratory of Compressor Technology
来源：
Nonlinear Dynamics | 2023年 / 111卷
关键词：
Vortex-induced rotational vibration; Eccentric circular cylinder; Numerical simulation; Fluid–structure interaction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Vortex-induced rotational vibration (VIRV) of an eccentric circular cylinder in uniform flow is studied by fluid–structure interaction (FSI) simulation. Firstly, the mechanics model of VIRV of an eccentric circular cylinder in laminar flow is proposed, and the corresponding mathematical formulations are derived. Then, an FSI solver combining the modified characteristic-based split finite element method, dual-time stepping method and spring analogy method is developed for VIRV of a bluff body in laminar flow, and its stability and accuracy are validated by two benchmark FSI problems. Using FSI code validated, VIRVs of an eccentric circular cylinder at Re = 100, ζ (damping ratio) = 0, m*(mass ratio) = 2, 5 and 10, l/D (l is the eccentricity and D is the cylinder diameter) = 0–5, and Ur (reduced velocity) = 1–30 are computed. The effects of m*, l/D and Ur on the dynamic response, fluid load and vortex pattern of the eccentric cylinder are analyzed. Significant rotational response with maximum angle up to 36.3° is observed, and some VIRV features such as “lock-in” are analyzed. Finally, the underlying mechanisms of VIRV characteristics of the eccentric cylinder are discussed based on the governing equation of vibration. The model proposed could be taken as a benchmark for VIRV of the bluff body in laminar flow, and the results obtained are insightful to the design of VIRV-based energy harvesters.
引用
收藏
页码：14805 / 14828
页数：23
相关论文
共 147 条
  • [1] Govardhan R(2004)Vortex-induced vibration Annu. Rev. Fluid Mech. 36 413-455
  • [2] Williamson CHK(1992)Response characteristics of a vortex-excited cylinder at low Reynolds numbers J. Fluids Struct. 6 39-50
  • [3] Anagnostopoulos P(1994)Numerical investigation of response and wake characteristics of a vortex-excited cylinder in a uniform stream J. Fluids Struct. 8 367-390
  • [4] Bearman PW(1996)Dynamics of a hydroelastic cylinder with very low mass and damping J. Fluids Struct. 10 455-472
  • [5] Anagnostopoulos P(1997)Investigation of the relative effects of mass and damping in vortex-induced vibration of a circular cylinder J. Wind Eng. Ind. Aerodyn. 69–71 341-350
  • [6] Khalak A(1997)Fluid forces and dynamics of a hydroelastic structure with very low mass and damping J. Fluids Struct. 11 973-982
  • [7] Williamson CHK(1999)Motions, forces and mode transitions in vortex-induced vibrations at low mass-damping J. Fluids Struct. 13 813-851
  • [8] Khalak A(2000)Modes of vortex formation and frequency response for a freely-vibrating cylinder J. Fluid Mech. 420 85-130
  • [9] Williamson CHK(2002)Resonance forever: existence of a critical mass and an infinite regime of resonance in vortex-induced vibration J. Fluid Mech. 473 147-166
  • [10] Khalak A(2001)Flow-induced vibration of a circular cylinder at limiting structural parameters J. Fluids Struct. 15 3-21
12345678910