Abstract To design eco-friendly ships, the hydrodynamic behaviour of the hull has to be estimated precisely. The first and foremost one is the ship resistance, which is closely related to the energy efficiency of the ship. Different extrapolation methods, based on different assumptions, have been used to predict the full-scale ship resistance from model-scale experiments. In this manner, it is important to understand the scale effect on the individual ship resistance components. In this study, URANS CFD simulations of KCS and KVLCC2 were conducted at different scales. The total resistance components were decomposed into the individual resistance components to investigate the scale effects. The simulation results were compared with full-scale resistance predictions using different extrapolation methods and the rationale of the different compliances between them was investigated. Finally, the hydrodynamic characteristics in different scales were examined.

中文翻译：

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船舶阻力组件和外形尺寸的比例效应

摘要 为了设计环保船舶，必须精确估计船体的水动力特性。首先是船舶阻力，它与船舶的能效密切相关。基于不同假设的不同外推方法已被用于从模型尺度实验中预测全尺寸船舶阻力。通过这种方式，了解尺度对单个船舶阻力分量的影响非常重要。在本研究中，KCS 和 KVLCC2 的 URANS CFD 模拟在不同的尺度上进行。将总阻力分量分解为单个阻力分量以研究尺度效应。将模拟结果与使用不同外推方法的全尺寸电阻预测进行比较，并研究了它们之间不同顺应性的基本原理。最后，考察了不同尺度下的水动力特性。