Vortex-Induced Vibration of a Circular Cylinder at High Reynolds Number

Large-eddy simulation (LES) of vortex-induced vibration (VIV) of a low mass ratio (\(m^*= 10\)) circular cylinder in the critical flow regime is carried out. In this regime, the boundary layer transitions from a laminar to turbulent state. Weakening of vortex shedding and reduction of drag is observed. The amplitude of cross-flow and in-line oscillations of the cylinder towards the end of the critical regime is small compared to that in the sub-critical flow.