• Corpus ID: 125061517

Three-dimensional effects of unsteady flapping rectangular plates

@inproceedings{Yi2010ThreedimensionalEO,
  title={Three-dimensional effects of unsteady flapping rectangular plates},
  author={Sun Yi},
  year={2010}
}

• S. Yi
• Published 2010
• Engineering, Physics

Aerodynamic responses of rectangular plates with different aspect ratios during flapping motion were simulated using a three dimensional unsteady panel code. The three-dimensional effects during plunging and pitching motions were then analyzed. The results demonstrated that the added mass only contributes to the instaneous lift force. The amplitudes of lift forces induced by added mass effects would decrease with a decreasing aspect ratio,but the time-averaged contributions were always zero. Vortices shedding from trailing and side edges of rectangular plates are sources of time-averaged lift forces. As the signature of streamwise vortices would change during one flapping cycle,the three-dimensional effects on vortex-induced lift forces would reduce as the flow unsteadiness increased.