考虑航行姿态变化的的高速船阻力性能预报

为了精确获得高速船的航行阻力,计及航行姿态变化对其阻力的影响。基于CFD理论,本文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,最终达到平衡,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。船舶设计工作者可以参考数值计算结果辅助船体型线设计,其具有重要的工程应用价值。

The resistance performance prediction of high speed vessel with consideration of hull gesture variation during voyage

In order to get the accurate high speed vessel sailing resistance,we should consider the hull gesture variation during voyage. Based on CFD, coupling solve 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 its accuracy can meet the requirement of engineering application. The ship designers can use the CFD result to design the shape of ship hull,it really make a difference.