网格拓扑对DLR-F6构型数值模拟的影响

发布时间：2018-04-05 11:29

  本文选题：RANS方程　切入点：网格拓扑　出处：《航空学报》2017年02期

【摘要】：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。
[Abstract]:Based on TRIP3.0 software platform and multi-block grid technology, the effects of control equations and grid topology on the numerical simulation of DLR-F6 configuration are studied.The parameters of the numerical calculation are the same as those of the experiment, and the RANS/TLNS equation is adopted. The coarse, medium and fine meshes of O type and H type topologies are generated for simulation.The results are analyzed from three aspects: aerodynamic characteristics, pressure coefficient distribution curve and surface flow state.By comparing with the experimental data, it is shown that the calculation results obtained by using H-type topological mesh and RANS equation model are more accurate when small separated flow is simulated.
【作者单位】： 国防科学技术大学航天科学与工程学院;中国空气动力研究与发展中心计算空气动力学研究所;
【基金】：国家重点研发计划(2016YFB0200700)~~
【分类号】：V211
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本文编号：1714575