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研究目的:使车辆受到的气动力减小及挡风墙建设施工具有良好的经济性。研究方法:采用二维粘性不可压缩雷诺平均应力方程,在横风风速为35．1 m／s时,路堤高度、挡风墙高度、设置位置不同条件下,对加筋土式挡风墙背风侧车辆的气动力进行数值模拟计算。研究结果:确定了挡风墙最佳高度和最佳设置位置随路堤高度的变化规律。研究结论:随着路堤高度的增大,挡风墙最佳高度不断的减小,但减小的幅度越来越小,而挡风墙的最佳设置位置变化幅度较小,基本在3．4～3．5之间。
Research purposes: To reduce the aerodynamic force on the vehicle and the construction of the wind wall construction has a good economy. Research methods: The two-dimensional viscous incompressible Reynolds-averaged stress equation is adopted. Under the condition of the crosswind wind speed of 35.1 m / s, the levee height of the embankment, the height of the windshield wall and the setting position, The aerodynamic forces of side vehicles are numerically simulated. The results show that the optimum height of the wind wall and the optimum position of the wall are determined with the variation of embankment height. Research conclusions: With the increase of the embankment height, the optimum height of the wind wall continuously decreases, but the decreasing range is getting smaller and smaller, while the optimum setting position of the wind wall is smaller, which is basically 3. Between 4 ~ 3.5.