【摘要】 以苏通长江大桥主桥闭口箱梁断面为例,采用大涡模拟方法的动态Smagorinsky模式,计算了雷诺数与风洞试验相当的断面气动三分力系数,并与实验值及雷诺时均方法的结果进行了对比。同时也进行了二维计算域的计算,并对不同三维计算域尺度及网格分辨率进行了计算对比,计算得到了不同计算域及网格对计算结果的影响情况。更多还原

【Abstract】 Based on the background of Sutong Bridge,drag,lift and moment force coefficient of the box girder have been numerically identified with the dynamic Smagorinsky model of lardy eddy simulation.Different lengths in axial direction and different sizes of grids have been compared later and the calculation with 2D computational domain has also been considered.更多还原