摘要
介绍了85%H2O2 PE固液火箭发动机的低频不稳定燃烧特征;应用发动机质量守恒方程对发动机低频耦合振荡燃烧现象进行了一维模拟,分析了氧化剂喷射压降对低频不稳定燃烧的影响。利用扰动分析确立了固液火箭发动机的稳定工作限,提出了抑制低频耦合振荡燃烧的方法。
The principle of low frequency unstable burning of the 85% H2O2-PE hybrid rocket motor was analyzed. A one-dimensional simulation of low frequency coupled oscillation combustion of the hybrid rocket motor was performed by using mass conservation equations. The effect of reduction of oxidizer injection pressure on low frequency unstable burning was discussed. On the basis of a perturbation analysis, the stability limits of the hybrid rocket motor was derived and the methods of suppressing low frequency coupling oscillation combustion of the hybrid rocket motor were suggested.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2004年第1期24-27,共4页
Journal of Solid Rocket Technology
基金
国防科技重点试验室基金(51470030101HK314)
西北工业大学博士论文创新基金(5211102 0800 G14108)。
关键词
固液混合火箭发动机
低频不稳定燃烧
质量守恒方程
稳定工作限
Combustion
Frequencies
Liquid propellants
Perturbation techniques
Simulation
Solid propellants
Stability
