航天推进技术研究院主办
Li Longfei,Chen Jianhua,Hong Liu,et al.Experimental method and challenge of the high-frequency combustion instability[J].Journal of Rocket Propulsion,2009,35(02):7-11.
高频燃烧不稳定性的试验研究方法 及面临的挑战
- Title:
- Experimental method and challenge of the high-frequency combustion instability
- Keywords:
- liquid propellant rocket engine; high—frequency combustion instability; responding characteristics; simulation testing metllod
- 分类号:
- V434
- 文献标志码:
- A
- 摘要:
- 采用特征时间法分析了液体火箭发动机燃烧子过程的响应特性,指出了高频燃 烧不稳定性试验研究的重点。介绍了国内外典型的高频燃烧不稳定性模拟实验方法与试验装 置,认为推力室声学、低压燃烧不稳定性模拟试验以及喷嘴动力学试验研究是目前指导工程 设计的主要途径,高压燃烧过程试验和光学测量技术是未来充分认识其激励机理的关键。
- Abstract:
- The responding characteristics of the combustion process of liquid propellant rocket engines were analyzed via characteristic time,and the experiment focuses on high-frequency combustion instability were pointed out.The typical simulation testing methods and test facilities were also introduced in this paper.The acoustic experimentation,the low-pressure hi【gh frequency com· bustion instability simulation and dynamics of injector experiments were presently regarded as the most effective approaches to engineering design.High—pressure combustion simulation experiments and the optical measuring technique were the key to the understanding of the high-frequency cornbustion instability mechanism.
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备注/Memo
收稿日期:2009-01—28:修回日期:2009-03—26。 作者简介:李龙飞(1977一),男,工程师,研究领域为液体火箭发动机热过程。