IEC阵风与紊流共同作用下的流场特性分析
Analysis of Flow Field Characteristics under the Combined Action of IEC Gust Wind and Turbulence
摘要: 采用大涡模拟(LES)的方法求解不可压缩流体连续方程和N-S方程,对格栅紊流场的均匀性,以及IEC阵风与紊流共同作用下的流场特性进行了数值模拟分析。通过分析格栅紊流流场特性参数,得出本文格栅流场在格栅下游4 m处的均匀性达到要求。IEC阵风与格栅紊流场结合较好,可用于后续桥梁断面特性的研究。
Abstract: The large eddy simulation (LES) method is used to solve the incompressible fluid continuity equa-tion and Navier-Stokes equation. The uniformity of grid-generated flow field, and the flow field characteristics under the combined action of IEC gust wind and turbulence are numerically simu-lated and analyzed. By analyzing the characteristic parameters of the turbulent flow field of the grid, it is concluded that the uniformity of the grid flow field at 4 m downstream of the grid meets the requirement. IEC gust wind is well combined with grid turbulent flow field, which can be used for further study of bridge cross-section characteristics.
文章引用:周俊吉, 唐逸. IEC阵风与紊流共同作用下的流场特性分析[J]. 建模与仿真, 2020, 9(4): 524-534. https://doi.org/10.12677/MOS.2020.94051

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