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Natural Frequency Ratio Effect on 2 DOF Flow Induced Vibration of Cylindrical Structures

  • Xiangxi Han
  • Chengbi Zhao
  • Youhong Tang
  • Xiaoming Chen
  • Wei Lin
  • Karl Sammut
Conference paper
  • 3.1k Downloads
Part of the Communications in Computer and Information Science book series (CCIS, volume 405)

Abstract

In this study, the vortex-induced vibration (VIV) of a circular cylinder at the low Reynolds number of 200 is simulated by a transient coupled fluid-structure interaction numerical model using the combination of FLUENT and ANSYS platforms. Considering VIV with low reduced damping parameters, the trend of the lift coefficient, the drag coefficient and the displacement of the cylinder are analyzed under different oscillating frequencies of the cylinder. The frequency ratio α is a very important parameter, which has been intensively investigated here. The typical nonlinear phenomena of locked-in, beat and phases switch can be captured successfully. The evolution of vortex shedding from the cylinder and the trajectory of the 2 DOF case with varied frequency ratio is also discussed.

Keywords

Fluid-structure interaction Vortex-induced vibration Workbench system coupling 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Xiangxi Han
    • 1
  • Chengbi Zhao
    • 1
  • Youhong Tang
    • 2
  • Xiaoming Chen
    • 3
  • Wei Lin
    • 1
  • Karl Sammut
    • 2
  1. 1.Department of Naval Architecture and Ocean Engineering, School of Civil Engineering and TransportationSouth China University of TechnologyChina
  2. 2.Centre for Maritime Engineering, Control and Imaging, School of Computer Science, Engineering and MathematicsFlinders UniversityAustralia
  3. 3.China Ship Architecture Design & Research Institute Co., Ltd.BeijingChina

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