Hydrodynamic Analysis of Ship Maneuverability by the Potential Flow Theory

The research on hydrodynamics of ship maneuverability based on the potential flow theory was presented.The velocity of flow field near the Wigly ship and the yawing moment of the ship when sailing with drift angle were calculated using boundary element method.The distributing of flow field near the sailing ship with drift angle was analyzed and variation of the yawing moment with the drift angle was studied.The results show that these researches adapt to prediction of ship movement with drift angle.