大型巡航救助船快速性研究

Speed Performance Research of Large Salvage Vessel

结合大型巡航救助船的功能需求和主尺度特点,对其快速性进行分析。采用计算流体力学(CFD)技术对原型方案的线型进行阻力性能计算。根据计算结果,分别对艏部轮廓线形状、球艏、呆木和支架进行优化,得到最终方案,该方案的阻力相比原型方案大幅减小。对最终方案进行模型试验,模型试验结果与CFD计算结果的吻合度良好,证明该船采用的线型优化方法是可靠、可用的。

Combining with functional demands and main dimensions of large salvage vessel, the analysis of speed performance is carried out. Adopting the computational fluid dynamics(CFD) technology, the linear of the prototype scheme is calculated with resistance performance. According to the calculating result, the stem profile shape, bulb, skeg and struts are optimized respectively, and the final scheme is gained finally. The resistance of the final scheme decreases largely comparing with the prototype scheme. The model test is done for the final scheme. The model test result agrees well with the CFD calculating result. It proves that the adopted linear optimizing method of the ship is reliable and good for use.