Abstract Applications and prospects of Computational Fluid Dynamics (CFD) for wind engineering fields are described from the viewpoint of a researcher at a construction company. First, CFD applications for environmental tasks are introduced. Predicting the pedestrian wind environment was one of the earliest examples that was put into practical use. Since then, CFD has been extended to applications such as predicting the dust dispersion from construction sites. These predictions are based on the Reynolds Averaged Navier-Stokes Simulation (RANS) turbulence model. Another model, Large Eddy Simulation (LES), is used to predict high-temperature exhaust gas flows inside the urban canopy, where the unsteady flow field affects the scalar transport phenomena. The area where the use of LES is most expected is in the field of wind force evaluation. For this purpose, the generation of time-dependent inflow boundary conditions is indispensable. Accordingly, the generation methods are introduced, and prediction examples are explained. Further, the prediction examples of the peak wind pressure around a complex-shaped building and the wind force evaluation for a base isolated building are exhibited. These results prove that the result of proper execution of CFD is equivalent to that of a wind tunnel experiment. In addition, as an exploratory study example, a prediction of wind pressure distribution brought by a tornado-like swirling flow is illustrated. Finally, future prospects in using CFD are discussed.

中文翻译：

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CFD在风工程领域的应用及前景

摘要 从某建筑公司研究人员的角度描述了计算流体动力学 (CFD) 在风工程领域的应用和前景。首先，介绍了环境任务的 CFD 应用程序。预测行人风环境是最早投入实际应用的例子之一。从那时起，CFD 已扩展到诸如预测建筑工地粉尘扩散等应用。这些预测基于雷诺平均纳维-斯托克斯模拟 (RANS) 湍流模型。另一个模型，大涡模拟 (LES)，用于预测城市冠层内的高温废气流，其中非定常流场影响标量传输现象。最期待使用 LES 的领域是风力评估领域。为此，时间相关流入边界条件的生成是必不可少的。因此，介绍了生成方法，并解释了预测示例。此外，还展示了复杂形状建筑物周围峰值风压的预测示例和基础隔离建筑物的风力评估。这些结果证明正确执行 CFD 的结果等同于风洞实验的结果。此外，作为探索性研究实例，说明了龙卷风式旋流带来的风压分布预测。最后，讨论了使用 CFD 的未来前景。展示了复杂形状建筑物周围峰值风压的预测实例和基础隔离建筑物的风力评估。这些结果证明正确执行 CFD 的结果等同于风洞实验的结果。此外，作为探索性研究实例，说明了龙卷风式旋流带来的风压分布预测。最后，讨论了使用 CFD 的未来前景。展示了复杂形状建筑物周围峰值风压的预测实例和基础隔离建筑物的风力评估。这些结果证明正确执行 CFD 的结果等同于风洞实验的结果。此外，作为探索性研究实例，说明了龙卷风式旋流带来的风压分布预测。最后，讨论了使用 CFD 的未来前景。说明了对类似龙卷风的旋流带来的风压分布的预测。最后，讨论了使用 CFD 的未来前景。说明了对类似龙卷风的旋流带来的风压分布的预测。最后，讨论了使用 CFD 的未来前景。