Research on Power Prediction Method for High-Speed Ship

1.利用九州大学的Wigley船体、螺旋桨和舵模型进行了阻力试验、螺旋桨敞水试验和自航试验，掌握了自由面效应引起的推进系数的波动情况.用横滨国立大学和广岛大学的边界层理论计算了螺旋桨平面的尾流分布。计算机代码计算的Wigley船的推进性能是由九州大学的计算组完成的，使用此代码和输入数据2显示出良好的一致性与实验结果1.4。利用有限差分法计算了东京大学船舶在静水和逆风中前进时船首周围的波型和压力分布。九州大学开发了计算非线性晃动的边界元法。在九州大学计算了Wigley船和Series 60船在规则顶浪中的推进性能，并与实验进行了比较。

1. The resistance test, the propeller open-water test and the self-propulsion test were carried out using Wigley hull, propeller and rudder models in Kyushu Univ. We could grasp the fluctuation of the propulsion factors due to the free surface effect.2. The wake distributions at the propeller plane were calculated by using the boundary layer theory at Yokohama National Univ. and Hiroshima Univ.3. The computer code to calculate the propulsive performance of the Wigley ship was completed by the group of Kyushu Univ. Calculations using this code and input data 2 showed good agreement with experimental results 1.4. By using the finite difference method, the wave profiles and pressure distributions were computed around the ship bow advancing in still water and in Head seas at Univ. of Tokyo.5. The boundary element method to calculate the nonlinear sloshing was developed at kyushu univ.6. The propulsive performance of the Wigley ship and the series 60 ship in regular head seas were calculated at Kyushu Univ. and compared with experiments.