万吨级浅吃水双艉鳍船型研究(阻力、推进性能及伴流场)  

The Research on Hull Forms of a 10000 ton Class Shallow-Draft, Twin-Skeg River-Seagoing Ship (Resistance, Propulsion Performance and Wake Field)

作　　者：张济猛 

机构地区：[1]上海船舶设计研究院

出　　处：《船舶工程》1990年第1期12-20,2,共9页Ship Engineering

摘　　要：本文介绍三只方形系数C_N(≈0.8浅吃水双艉鳍船模的试验结果。这是保持C_B、船长和排水量不变,变化B/T而得的三只相似线型船模,着重研究B/T对性能的影响。本文提供了阻力计算图谱、推进因子估算图谱和伴流场分析资料,并提供了湿面积计算公式和船长不同对阻力的修正系数。采用本文资料可方便地得到在研究尺度范围内的线型、阻力及推进因子资料。本船型有较佳的阻力性能、较高的推进因子及较均匀的伴流场。本文提供资料适用范围为L/▽~1/~3=5.72～5.414,C_B=0.803～0.813,B/T=3.30～5.20。This paper deals with the results of three shallow-draft twin-skeg ship model tests (C_b≈0.8). Keeping the block coefficient, ship length and displacement unchanged, by varying the beam-draft ratio, three geometrically similar hull forms had obtained. Diagrams for estimating the resistance and propulsion factors and some wake test data are presented. This paper also gives formulae for calculating wetted surface and resistance correction coefficient versus ship length. Based on these data, the lines, resistance and propulsion factors may be obtained easily within the dimentional limits of ships to be designed. These ship forms have good resistance characteristics, high propulsion factors and evenly distributed wake field. The data presented in the paper are applicable to the following range of ship parameters: L/▽^(1/3)=5.72～5.414 C_B=0.803～0.813 B/T=3.30～5.20

关 键 词：双艉鳍船型 阻力 推进性能 伴流场 

分 类 号：U662.2[交通运输工程—船舶及航道工程]