IntroductionThe vortex-induced vibr

Introduction
The vortex-induced vibration (VIV) of a flexibly mounted rigid body is a major research area belonging to fluidstructure
interactions. Galloping instability characterized by large amplitude and low frequency self-excited
oscillations differs from VIV. Besides the oscillator cross-section, the non-dimensional parameters of interest in
fluid-structure interactions include mass ratio, m*; coefficient of structural damping, ζ; reduced speed, U* and
Reynolds number, Re. Mass ratio is the ratio of oscillator mass per unit length and mass of displaced fluid.