A Lattice-Boltzmann-based Large-Eddy Simulation approach for wind load prediction on high-rise building is proposed and validated. An extension of the original incompressible Synthetic Eddy Method to reconstruct inlet turbulence is proposed within the Lattice-Boltzmann framework, including a low-noise frozen density variant. Extensive successful comparisons with experimental data are carried out, for both quantities defined on the building surface and in its wake. A detailed sensitivity analysis of the results with respect to inlet turbulence reconstruction, boundary conditions at the building surface and grid resolution is also provided. An almost unique set of comparisons with experimental data is presented, including mean and rms values, spectra, but also peak values of pressure at the building surface.

提出并验证了一种基于Lattice-Boltzmann的大涡模拟方法，用于高层建筑的风荷载预测。在Lattice-Boltzmann框架内，提出了一种原始不可压缩的合成涡流方法的扩展，以重建入口湍流，其中包括一个低噪声的冻结密度变量。对于在建筑物表面及其后定义的数量，均与实验数据进行了广泛的成功比较。还提供了关于入口湍流重建，建筑物表面边界条件和网格分辨率的结果的详细灵敏度分析。提出了一组与实验数据几乎唯一的比较，包括平均值和均方根值，频谱以及建筑物表面压力的峰值。