基于TRIP3.0软件平台和多块结构网格技术,开展了控制方程和网格拓扑等因素对DLR-F6构型数值模拟的影响研究。数值计算采用与试验相同的参数,采用了RANS/TLNS方程,生成了O型和H型2种拓扑的粗、中、细网格进行模拟。分别从气动特性、压力系数分布曲线和表面流态3个方面对结果进行分析。通过与试验数据的对比表明,在模拟小分离流动时,采用H型拓扑网格和RANS方程模型,获得的计算结果会更为准确。 Based on TRIP3.0 software platform and multi-block structure grid technology, the influence of control equations and grid topology on the numerical simulation of DLR-F6 configuration is studied. The numerical calculation is based on the same parameters as the experimental ones. RANS / TLNS equations are used to generate coarse, medium and fine meshes of O and H topologies. The results were analyzed from three aspects of aerodynamic characteristics, pressure coefficient distribution curve and surface flow. The comparison with the experimental data shows that the H-topology mesh and the RANS equation model can be used to obtain the more accurate results when simulating small-scale flow.