Multi-plan optimization design of high-speed hull form fusion special type bulbous bow

  Objectives  To meet the functional requirements of a special purpose ship, large bulbous bow should be installed at the fore-body as the carrier of special equipment. In order to overcome the adverse effect of large bulbous bow as a special appendage on ship rapidity, the optimal design of high-speed hull form fusion special type bulbous bow was carried out.

  Methods  By using the method of gradual approach to analysis, The hull and its appendages were compared and analyzed, the ship with high resistance performance was selected by numerical simulation, which was verified by model test.

  Results  The results show that the hull form of round bilge fused cylindrical bulbous ship is a hull form that can meet the layout requirement and has high performance.

  Conclusions  Under the same calculation conditions, the numerical simulation can accurately predict the resistance differences among different hull forms, the multi-plan optimization design approach proposed in this paper is an effective method to optimize hull forms.