Vortex-induced vibration of a bottom fixed flexible circular beam

• We conducted an experimental study of VIV on a circular flexible beam.
• We determined the vortex shedding and cylinder frequencies in the lock-in.
• The cylinder frequency controls the vortex shedding frequency.
• The branches in the lock in are clearly delimited by the frequency response.

In this paper, we study the vortex-induced vibration of a bottom fixed circular cylinder with a 0.126 mass damping ratio and blockage ratio lower than 1%. The experiments were performed in a water tunnel at low Reynolds numbers (90