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LENS风洞实验返回器模型气动热特性模拟-2021增刊

李鹏,陈坚强,丁明松,梅杰,何先耀,董维中   

  1. 中国空气动力研究与发展中心
  • 收稿日期:2021-09-18 修回日期:2021-10-12 出版日期:2021-10-14 发布日期:2021-10-14
  • 通讯作者: 董维中
  • 基金资助:
    国家数值风洞工程

Simulation of Aerothermal Effects on Reentry Capsule Geometry in LENS Wind Tunnel Experiments

  • Received:2021-09-18 Revised:2021-10-12 Online:2021-10-14 Published:2021-10-14
  • Contact: Wei-Zhong DONG

摘要: 国家数值风洞高超声速流动模拟软件HyFLOW的研制对打破国外同类软件的技术壁垒具有重要意义。与国外DPLR软件进行了对比研究,同时系统介绍了HyFLOW求解器的数值方法、物理化学模型以及壁面催化特性计算模型等主要方法,采用典型算例对有限催化模型进行了数值验证,最后基于LENS风洞实验146mm返回器标模外形开展了高超声速气动热特性数值模拟。研究结果表明,HyFLOW软件在高超声速热化学非平衡流动模拟与评估方面的气动力计算精度高,与国外同类软件DPLR相当,同时其壁面催化条件下的气动热计算精度可靠,可信度高。

关键词: 高超声速, 热化学非平衡, 国家数值风洞, HyFLOW软件, DPLR软件, LENS风洞

Abstract: The development of the National Numerical Windtunnel hypersonic flow simulation software HyFLOW is of great significance to breaking the technical barriers of similar foreign softwares. Comparative study with foreign DPLR software is conducted in this paper, and the main methods of the HyFLOW solver such as the numerical method, the physical and chemical models and the calculation model of the wall catalytic characteristics are introduced systematically. Subsequently, numerical verification of the partial catalytic wall model is executed with typical example, and finally the numerical simulation of the hypersonic aerothermal characteristics is carried out based on the standard 146-mm reentry capsule model in the LENS wind tunnel experiment. The research results show that the HyFLOW software has high aerodynamic calculation accuracy in the simulation and evaluation of hypersonic thermochemical non-equilibrium flow, which is equivalent to that of the similar foreign DPLR software, while the calculation accuracy of aerodynamic heating under the wall catalytic conditions is reliable, and the credibility is high.

Key words: hypersonic, thermochemical nonequilibrium, National Numerical Windtunnel, HyFLOW, DPLR, LENS

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