L/B参数对双桨大长宽比超肥大船型阻力性能的影响

为了探讨船型参数L/B对双桨大长宽比超肥大船型阻力性能的影响,建立该船型有效功率的定量预报系统,作者在B/T系列和CB系列船模试验之后,又进行了L/B系列船模试验.L/B系列船模共4艘,通过每条船模3个不同排水量的静水阻力试验,给出了L/B=8.0～11.65范围的剩余阻力系数图谱和L/B参数影响对剩余阻力系数的修正图谱,获得了一些有益的结论,供设计部门使用参考.

The Effect of L/B Parameters on the Hampered Performance of an Ultra-Large Vessel with Twin Screws and Large length-width ratio

In order to discuss the effect of parameters on the resisted performance of an ultra-large ship with twin propellers and large LB ratio, and to establish the quantitative forecasting system of effective power of this kind of vessel, the author makes the L/B serial ship model tests after series of B/T and CB tests. Four model vessels are involved in the L/B tests,each tested with three hydrostatic resistance of different displacement. The tests then generate the coefficient map of remaining resistance within the range of L/B = 8.0 ~ 11.65 and the map showing the effect of L/B parameters on the remaining resistance coefficience for correction, as in turn offers some conclusions which will surely benefit the vessel designers.