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[an error occurred while processing this directive]喷孔结构对头部进气固体火箭超燃冲压发动机燃烧性能的影响
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刘仔(1991—),男,四川广安人,工程师,博士研究生,研究方向:固体发动机总体设计。 |
收稿日期: 2022-04-12
网络出版日期: 2025-05-29
Effect of the Nozzle Structure on Combustion Performance of Nose Fuel-inlet Model Solid-fuel Rocket Scramjet
Received date: 2022-04-12
Online published: 2025-05-29
刘仔 , 李叙华 , 王立武 , 陈林泉 . 喷孔结构对头部进气固体火箭超燃冲压发动机燃烧性能的影响[J]. 弹箭与制导学报, 2022 , 42(4) : 47 -50 . DOI: 10.15892/j.cnki.djzdxb.2022.04.009
In order to improve the combustion performance of head intake solid rocket scramjet, the effect of rich fuel gas nozzle structure on the engine combustion performance was researched by using numerical simulation. The result showed that compared with the traditional round section nozzle structure, the elliptical section nozzle structure has more sufficient mixing of rich fuel gas and air, higher chemical reaction rate, higher thrust, and specific impulse gain. With the ratio increase of long half axis to short half axis of elliptical section nozzle, the combustion performance of secondary combustion chamber is better. It is recommended to use elliptical section nozzle in engineering.
Key words: solid-fuel rocket; scramjet; the nozzle structure; combustion performance
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