This paper presents the virtual mass method to implement the prediction of total resistance for ice-going ship in floe ice region based on the combined method of CFD and DEM. Two ways of floe ice distribution are adopted for the analysis and comparison. The synthetic ice model test has been conducted to determine the optimal virtual mass coefficients for the two different floe ice distributions. Moreover, the further verification and prediction are developed in different ice conditions. The results show that, the fixed and random distributions in numerical method can simulate the interaction of ship and ice vividly, the trend of total resistance varying with the speed and ice concentration obtained by the numerical simulation is consistent with the model test. The random distribution of floe ice has higher similarity and better accuracy than fixed distribution.

本文提出了一种基于CFD和DEM相结合的虚拟质量方法，以实现浮冰区航船总阻力的预测。分析和比较采用两种浮冰分布方式。已经进行了合成冰模型测试，以确定两种不同的浮冰分布的最佳虚拟质量系数。此外，在不同的冰层条件下进行了进一步的验证和预测。结果表明，采用数值方法的固定分布和随机分布可以生动地模拟船舶与冰层的相互作用，数值模拟得出的总阻力随速度和冰浓度的变化趋势与模型试验吻合。