38000m^3耙吸挖泥船线型设计优化研究

大型或超大型耙吸挖泥船采用优选的双尾鳍线型,同时与带折角线的前体线型有机结合,可有效降低总阻力,提高推进效率。文中结合38 000 m^3耙吸挖泥船带双尾鳍的浅吃水肥大船型的船型特征,利用CFD分析技术对该船的艏艉线型进行设计与优化,模型试验结果表明,优化线型船的航速超过了设计指标,达到设计要求。

Lines design and optimization of 38000m^3 trailing suction hopper dredger

Large and ultra large trailing suction hopper dredgers adopt optimized the twin-skeg form,which can reduce the overall resistance and improve the propulsion efficiency by combining with knuckle line forebody.According to the shallow draft full ship characteristics of a 38 000 m^3 trailing suction hopper dredger with twinskeg form,bow and stern lines are designed and optimized by the CFD analysis technology.The test results show that the speed with optimized lines exceeds the specified target speed and meet the design requirements.