Abstract This article presents a detailed numerical flow assessment of the boundary layer and wake of a full-scale cargo ship. The assessment was conducted using a sophisticated numerical approach that is able to resolve large turbulent scale vortices contained in the flow. The physical flow features of the boundary layer and wake investigated include mean-velocity, near-wall shear stress and vorticity fields. Also, the evolution of the wake from the thick boundary layer over the stern is displayed and analysed in the highest possible detail. Additionally, the detailed information extracted from the boundary layer and wake was the primary input to assess the overall hydrodynamic efficiency of the full-scale general cargo ship. The analysis method followed during this work has been a determinant factor for fast and efficient design of energy saving devices, propellers or rudders that work within the limits of the boundary layer of a ship. In particular, this thorough analysis avoided the necessity to use the commonly used practice of trial and error that is typically followed in the maritime industry.

中文翻译：

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详细分析边界层内的流动和全尺寸船舶的尾流

摘要 本文介绍了一艘全尺寸货船边界层和尾流的详细数值流动评估。评估是使用复杂的数值方法进行的，该方法能够解决流动中包含的大型湍流尺度涡旋。边界层和尾流的物理流动特征包括平均速度、近壁剪应力和涡度场。此外，还以尽可能高的细节显示和分析了来自船尾厚边界层的尾流的演变。此外，从边界层和尾流中提取的详细信息是评估全尺寸杂货船整体水动力效率的主要输入。在这项工作中采用的分析方法是快速有效设计在船舶边界层范围内工作的节能装置、螺旋桨或舵的决定因素。特别是，这种彻底的分析避免了使用海事行业通常遵循的常用试错法的必要性。