Vortex induced vibration of an elastically mounted circular cylinder with forced rotataions

Flow over an elastically mounted circular cylinder with forced rotation is numerically studied in this paper. The cylinder vibrates in in-line and cross-flow directions, and the rotating speed is constant. Reynolds number was fixed at 5000, and the shear stress transport k-w model was used to simulate turbulence in the flow. The effect on the response, hydrodynamic force and wake structure from rotation are extensively studied. Higher harmonic fluid forces and the trajectories of the cylinder motions are also investigated under various reduced velocities