阶背式轿车模型尾流场仿真研究

摘要

By reference of literature, a Ford notchback car model is built with two calculation domains set, and based on different heights of first layer, three meshes are generated. Then commercial computational fluid dy-namics code Ansys Fluent is used to conduct a simulation on the model, including its surface pressure filed, bound-ary layer flow, wake structure and aerodynamic drag coefficients. Finally some conclusions are drawn based on sim-ulation results.%参照参考文献建立了Ford阶背式轿车模型，设置两种计算域，并以不同的首层高度，生成了3种网格，采用计算流体动力学( CFD)软件Ansys Fluent对模型进行仿真，包括表面压力场、边界层流动、尾场结构和气动阻力系数的分析。最后根据仿真结果，得出若干结论。