考虑航行姿态变化的高速船阻力性能预报

Resistance Performance Prediction of High Speed Vessel with Consideration of Hull Gesture Variation during Voyage

为了精确获取高速船的航行阻力,计及航行姿态变化对其阻力的影响,基于CFD理论,通过耦合求解计及黏性的RANS和船体运动方程的方式实时预报船体受力,船体根据受力进行姿态调整,直至船体受力与航行姿态处于动态平衡,以此预报船舶在高速运动稳定后的航行姿态及阻力。并将一系列的数值计算结果与试验数据对比分析,数值计算结果和实验数据吻合良好。数值计算结果可以为船舶设计工作者辅助船体型线设计提供参考,具有重要的工程应用价值。

In order to get the accurate high speed vessel sailing resistance, the hull gesture variation during voyage should be considered. Based on the CFD theory, the coupling solves RANS and ship motion equation to capture the ship navigation attitude and resistance. The numerical calculation gets the resistance and navigation attitude of the high speed vessel and compared with the corresponding experimental date. The result shows that the accuracy can meet the requirement of engineering application. The ship designers can use the CFD result to design the shape of ship hull, which has great significance for engineering application.