中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2017, Vol. 43 ›› Issue (6): 72-78.doi: 10.3969/j.issn.1674-1579.2017.06.012

• 技术交流 • 上一篇    下一篇

空间发动机推力室气相流动分布无量纲表达方法

孙恒超,刘敏,吕红剑,王莉娜   


  1. (1.中国空间技术研究院 通信卫星事业部,北京 100094;
    2. 北京卫星环境工程研究所,北京 100094)
  • 收稿日期:2017-04-20 出版日期:2017-12-20 发布日期:2018-01-03
  • 作者简介:作者简介:孙恒超(1987—),男,工程师,研究方向为空间推进技术研究;刘敏(1984—),男,高级工程师,研究方向为航天器总体设计与卫星姿态控制;吕红剑(1981—),男,高级工程师,研究方向为航天器总体设计技术;王莉娜(1985—),女,工程师,研究方向为航天器真空与检漏技术.

Dimensionless Expression of Gas Flow in the Thrust Chamber of Space Rocket Engine

 SUN  Heng-Chao, LIU  Min, LYU  Hong-Jian , WANG  Li-Na   

  1. (1.Institute of Telecommunication Satellite, China Academy of Space Technology, Beijing 100094,China; 2.Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China)
  • Received:2017-04-20 Online:2017-12-20 Published:2018-01-03

摘要:   摘要: 为探究空间发动机推力室气相流动分布简便表达机制,开展推力室气相介质流动相似性分析.构建空间发动机推力室气相介质流动数值模型,并计算典型结构和工况条件下气相介质流动速度和压力;根据量纲分析方法推导推力室气相介质流动相似准则,借助相似准则提出推力室气相介质流动速度和压力的无量纲表达方法;以正交试验方案组织多种结构和工况参数下的推力室气相介质流动数值计算,并以数值计算结果为输入确定了气相介质流动速度和压力的无量纲表达式.  

关键词: 关键词: 空间发动机, 燃烧室, 气相, 数值模型, 相似准则

Abstract: Abstract:To explore a convenient expression of gas flow in the thrust chamber of space rocket engine, the similarity analysis of gas flow in the thrust chamber is carried out. Firstly, a numerical model is built to describe the gas flow in the thrust chamber, and the gas flow velocity and pressure are calculated under typical structure and operating conditions. Secondly, the similarity criteria of gas flow are derived based on dimensional analysis. The dimensionless expression method of gas flow velocity and pressure in thrust chamber is promoted with the similarity criteria. Then the numerical calculation under various structure and operating parameters is organized with an orthogonal design plan. Lastly, the dimensionless expression of gas flow velocity and pressure is obtained with the numerical results as input.  

Key words: Keywords:space rocket engine, combustion chamber, gas flow, numerical model, similarity criteria

中图分类号: 

  • 中图分类号: V434