为了研究不同的湍流模型对数值模拟结果精度和数值准确度的影响,采用了PRO-E和ICEMCFD进行模型的建立和网格的生成,使用FLUENT软件对高速列车外流场进行分析,在其他条件不变的情况下,湍流模型选用双方程k-ε模型和标准k-ω模型,通过对流场的受力和速度分布图的分析对比,可以看出RNGk-ε得出的数值结果与真实情况最接近,更加符合列车外流场气动的特性。 In order to study the effect of different turbulence model on numerical simulation accuracy and numerical accuracy, PRO-E and ICEMCFD were used to establish the model and mesh generation. The FLUENT software was used to analyze the outflow field of high-speed train. Under other conditions In the case of invariance, the turbulence model chooses the two-equation k-ε model and the standard k-ω model. By comparing and analyzing the stress and velocity distribution of the flow field, we can see that the numerical results of RNGk- The situation is the closest, more in line with the aerodynamic characteristics of train flow field.