超大型液化石油气船线型优化设计与试验  

Hull form Optimization and Model Tests for a Very Large Gas Carrier

作　　者：高玉玲[1] 陈霞萍[1] 柳卫东[2] 陈兵[2] 

机构地区：[1]上海船舶运输科学研究所航运技术与安全国家重点实验室,上海200135 [2]江南造船(集团)有限责任公司,上海201913

出　　处：《上海船舶运输科学研究所学报》2015年第2期15-18,共4页Journal of Shanghai Ship and Shipping Research Institute

摘　　要：为开发具有国际竞争力的超大型液化石油气船(VLGC)船型,并为我国船厂获得VLGC的订单提供技术支持,基于CFD数值分析对VLGC进行设计吃水状态的线型优化研究。优化的线型波形平缓,船体表面压力分布均匀,艉部桨盘面伴流分布均匀,模型试验结果与CFD计算结果吻合良好。模型试验结果表明,最终优化设计的线型阻力低,能效高,船舶航速指标先进。对开发的新船型进一步开展不同纵倾压载状态的比较试验研究,结果表明,合理地调整压载纵倾值能有效改善压载状态的阻力性能,降低能耗。The market of the design and building of Very Large Gas Carrier （VLGC） have been dominated by foreign countries. In order to develop competing hull form to help Chinese shipyards to win VLGC orders on world market, a VLGC hull form is designed and optimized at design draft by means of CFD method and the results show that the optimized lines had flat wave profile, uniform pressure distribution on the hull and uniform wake field on propeller disk astern. The model tests show that the optimized hull form has low resistance and high energy efficiency which agree with the CFD results. The newly developed hull form has a speed index which reaches the world advance level. The hull form design is finalized according to the model test research on different combination of ballast draughts and trims. The research indicates that reasonable ballast can improve the resistance performance, hence, reducing energy consumption.

关 键 词：超大型液化石油气船 线型优化 计算流体力学 模型试验 

分 类 号：U674.133[交通运输工程—船舶及航道工程]