航天推进技术研究院主办
Li Longfei,Chen Jianhua,Zhou Lixin,et al.Investigation on Acoustic Characteristics of Gas-Liquid Coaxial Injector of Staged Combustion Rocket Engine[J].Journal of Rocket Propulsion,2004,(06):5-10.
补燃循环火箭发动机气液同轴式喷嘴声学特性研究
- Title:
- Investigation on Acoustic Characteristics of Gas-Liquid Coaxial Injector of Staged Combustion Rocket Engine
- 分类号:
- V434
- 文献标志码:
- A
- 摘要:
- 基于经典声学和振动理论,运用流体动力学基本方程描述燃气通道内气体的波动现象,建立了双组元同轴直流离心式气液喷嘴声学特性分析的物理、数学模型,采用四端网络方法进行了计算。对单喷嘴声学模拟试验结果进行了分析。结果表明,所建声学特性分析模型用于分析喷嘴波动过程是可行的;合适的通道长度和节流嘴直径对液氧/煤油补燃循环发动机高频燃烧不稳定性有明显的阻尼作用。
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