In this study, a large-eddy simulation (LES) code with the one-dimensional turbulence (ODT) wall model is tested for the simulation of the atmospheric boundary layer under neutral, stable, unstable and free-convection conditions. The ODT model provides a vertically refined flow field near the wall, which has small-scale fluctuations from the ODT stochastic turbulence model and an extension of the LES large-scale coherent structures. From this additional field, the lower boundary conditions needed by LES can be extracted. Results are compared to the LES using the classical algebraic wall model based on the Monin–Obukhov similarity theory (MOST), showing similar results in most of the domain with improvements in horizontal velocity and temperature spectra in the near-wall region for simulations of the neutral/stable/unstable cases. For the free-convection test, spectra from the ODT part of the flow were directly compared to spectra generated by LES-MOST at the same height, showing similar behaviour despite some degradation. Furthermore, the additional flow field improved the near-wall vertical velocity skewness for the unstable/free-convection cases. The tool is demonstrated to provide adequate results without the need of any case-specific parameter tuning. Future studies involving complex physicochemical processes at the surface (such as the presence of vertically distributed sources and sinks of matter and energy) within a large domain are likely to benefit from this tool.

在这项研究中，测试了具有一维湍流 (ODT) 壁面模型的大涡模拟 (LES) 代码，用于模拟中性、稳定、不稳定和自由对流条件下的大气边界层。ODT模型提供了一个垂直细化的靠近壁面的流场，它具有ODT随机湍流模型的小尺度波动和LES大尺度相干结构的扩展。从这个附加字段中，可以提取 LES 所需的下边界条件。使用基于 Monin-Obukhov 相似性理论 (MOST) 的经典代数壁模型将结果与 LES 进行比较，在大多数域中显示出相似的结果，近壁区域的水平速度和温度谱得到了改善，用于模拟中性/稳定/不稳定的情况。对于自由对流测试，流动的 ODT 部分的光谱直接与 LES-MOST 在相同高度产生的光谱进行比较，尽管有一些退化，但表现出相似的行为。此外，附加流场改善了不稳定/自由对流情况下的近壁垂直速度偏度。该工具被证明可以提供足够的结果，而无需任何特定于案例的参数调整。未来涉及大范围内地表复杂物理化学过程（例如存在垂直分布的物质和能量源和汇）的研究可能会受益于该工具。额外的流场改善了不稳定/自由对流情况下的近壁垂直速度偏度。该工具被证明可以提供足够的结果，而无需任何特定于案例的参数调整。未来涉及大范围内地表复杂物理化学过程（例如存在垂直分布的物质和能量源和汇）的研究可能会受益于该工具。额外的流场改善了不稳定/自由对流情况下的近壁垂直速度偏度。该工具被证明可以提供足够的结果，而无需任何特定于案例的参数调整。未来涉及大范围内地表复杂物理化学过程（例如存在垂直分布的物质和能量源和汇）的研究可能会受益于该工具。