Simulation and analysis on combustion performance of hydrogen-rich/oxygen-rich gas-gas coaxial injectors

LI Mao; DU Zheng-gang; JIN Ping; CAI Guo-biao

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Simulation and analysis on combustion performance of hydrogen-rich/oxygen-rich gas-gas coaxial injectors

更新时间：2026-07-07

- Simulation and analysis on combustion performance of hydrogen-rich/oxygen-rich gas-gas coaxial injectors
- Vol. 25, Issue 4, (2010)
- 作者机构：
  
  北京航空航天大学宇航学院,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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LI Mao, DU Zheng-gang, JIN Ping, et al. Simulation and analysis on combustion performance of hydrogen-rich/oxygen-rich gas-gas coaxial injectors[J]. 2010, 25(4).
DOI：

LI Mao, DU Zheng-gang, JIN Ping, et al. Simulation and analysis on combustion performance of hydrogen-rich/oxygen-rich gas-gas coaxial injectors[J]. 2010, 25(4). DOI：

摘要

为研究全流量补燃循环发动机富氢/富氧燃气气-气喷嘴性能

以758 K的富氢燃气为燃料、676 K的富氧燃气为氧化剂

对采用同轴直流喷嘴、氧喷嘴扩张同轴喷嘴、氢喷嘴收缩同轴喷嘴、氧喷嘴中心具有实心圆柱同轴喷嘴、双同轴直流喷嘴的燃烧室的燃烧流场进行了数值模拟

并考察了流量对燃烧性能的影响.仿真结果表明双同轴直流喷嘴具有最好的燃烧性能.数值模拟结果对富氢/富氧燃气气-气喷注器设计有参考价值.

Abstract

In order to investigate the performance of the hydrogen-rich/oxygen-rich gas-gas injector in the full flow staged combustion(FFSC) engine

the combustion flow fields of the combustors with a shear coaxial injector

a coaxial injector for the oxidizer injector with expansion angle

a coaxial injector for the fuel injector with contraction angle

a coaxial injector for the oxidizer injector with a column in the center and a shear dual-coaxial injector were simulated.The propellant of the injectors was hydrogen-rich gas in temperature of 758 K and oxygen-rich gas in temperature of 676 K.The results of the numerical simulation show that

the shear dual-coaxial injector has the best combustion performance.The results can provide the reliable criterion for the design and experiment of hydrogen-rich/oxygen-rich gas-gas injector.

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