基于FLUENT的大型集装箱船航速预报方法研究

Studies of FLUENT-based Speed Prediction Method for Large Containers

根据阻力的三因次分析方法计算船舶航行的阻力成份。采用不同的网格划分和离散算法以及相应的控制方程,使用基于CFD的FLUENT软件平台进行数值求解,处理黏性阻力与兴波阻力的计算结果,实现对实船航速的预报。以大型集装箱船作为算例,将数值计算结果分别同模型试验和实船试验结果进行了比较,结果表明采用该数值计算方法得到的实船航速预报结果可达到工程设计应用的精度。

The components of resistance during the voyage are analyzed by using the three-dimensional extrapolation method.Different mesh generation methods and discrete algorithms are used to solve the corresponding governing equations by CFD-based commercial software FLUENT.CFD results are used to analyze viscous and wave resistance value in order to achieve the prediction of ship speed.The comparison of the numerical calculation results respectively with the model test results and full-scale speed trial results,taking a large container as an example.The speed prediction result by the numerical method meets the engineering requirements on accuracy.