High fidelity computational fluid dynamics simulations of ship airwakes are often performed with time accurate, turbulence resolving methods, such as large eddy simulation or detached eddy simulation. In our review of the literature we find that the finite sample error in the results of these simulations is rarely expressed in terms of uncertainty in the statistics. This makes it difficult to determine if any disagreement with experiment or other simulations can be attributed to finite sample time, grid resolution, or modelling approximations. In this paper, turbulence resolving simulations of the airwake over the SFS1 geometry are used to demonstrate a method for quantifying the uncertainty due to finite sample error with an estimated confidence interval. Based on this quantification, a stopping criterion is then formulated so that the simulation time can be set by a predetermined requirement for the confidence in the statistics.

船舶空中唤醒的高保真计算流体动力学仿真通常使用时间精确的湍流解析方法进行，例如大涡流仿真或分离涡流仿真。在我们对文献的回顾中，我们发现这些模拟结果中的有限样本误差很少用统计的不确定性来表示。这使得很难确定与实验或其他模拟的不同之处是否可以归因于有限的采样时间，网格分辨率或建模近似值。在本文中，在SFS1几何形状上的空中尾流的湍流解析模拟被用来演示一种量化具有有限估计误差的不确定性的方法，该不确定性具有估计的置信区间。基于这种量化，