摘要
双层集装箱平车在横向大风作用下的气动特性将影响车辆运行的稳定性。现运用计算流体动力学软件CFX ,采用三维粘性不可压缩雷诺平均应力方程和k—ε双方程湍流模型 ,计算并分析了在 2 5m/s横风作用下 ,运行速度为 12 0km/h的双层集装箱平车的表面压力、速度分布及所受气动侧向力等参数 ,确定了其承受的最大横向气动载荷 ,为平车横向稳定性等动力学计算提供参考。
The aerodynamic characteristics of double-container train under the cross-wind affects the stability deeply.In this paper,taking advantage of 3D Reynolds-averaged Navier and k-ε turbulence model surface pressure,velocity distribution and aerodynamic parameter of the train were computed with saftware computational FLuids Dynamics(CFX)under conditions of 25?m/s cross-wind and 120km/h speed,and the maximal cross-aerodynamic load was obtained finally.
出处
《铁道机车车辆》
2004年第3期17-20,共4页
Railway Locomotive & Car
