航空学报 > 2017, Vol. 38 Issue (2): 120177-120183   doi: 10.7257/S1000-6893.2016.0168

网格拓扑对DLR-F6构型数值模拟的影响

李伟1,2, 孟德虹2, 洪俊武2, 李桦1   

  1. 1. 国防科学技术大学 航天科学与工程学院, 长沙 410073;
    2. 中国空气动力研究与发展中心 计算空气动力学研究所, 绵阳 621000
  • 收稿日期:2016-03-02 修回日期:2016-05-26 出版日期:2017-02-15 发布日期:2016-06-02
  • 通讯作者: 洪俊武,E-mail:hjw128@sina.com E-mail:hjw128@sina.com
  • 基金资助:

    国家重点研发计划(2016YFB0200700)

Effect of mesh topology on numerical simulation of DLR-F6 configuration

LI Wei1,2, MENG Dehong2, HONG Junwu2, LI Hua1   

  1. 1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;
    2. Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2016-03-02 Revised:2016-05-26 Online:2017-02-15 Published:2016-06-02
  • Supported by:

    National Key Research and Development Program (2016YFB0200700)

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。

关键词: RANS方程, 网格拓扑, 分离流, 网格密度, 气动特性

Abstract:

Based on the TRIP 3.0(TRIsonic Platform V3.0) software and structure grid technology, the effects of different mesh topologies and control equations on aerodynamic characters of DLR-F6 wing-body configuration are studied. The study is implemented with the RANS/TLNS equations, as the same parameters of the experiment are used. Coarse, medium and fine meshes of O and H topologies are also generated for the simulation.The effects on the simulation of DLR-F6 wing-body configuration are studied from aerodynamic characters, pressure coefficient distribution curve and flow pattern on the surface. Compared with experimental data, the numerical results indicate that more accurate results can be obtained by adopting the H topology mesh and RANS equations on the simulations of flow field with small separation zone.

Key words: RANS equations, mesh topology, separated flow, grid density, aerodynamic character

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