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氢氧燃烧加热器点火试验和数值仿真研究

方昕昕 伍军 康忠涛 王振锋 翟小飞 李宏斌 黄可武 王世茂 刘龙 代雄

方昕昕, 伍军, 康忠涛, 等. 氢氧燃烧加热器点火试验和数值仿真研究[J]. 航空动力学报, 2024, 39(9):20220821 doi: 10.13224/j.cnki.jasp.20220821
引用本文: 方昕昕, 伍军, 康忠涛, 等. 氢氧燃烧加热器点火试验和数值仿真研究[J]. 航空动力学报, 2024, 39(9):20220821 doi: 10.13224/j.cnki.jasp.20220821
FANG Xinxin, WU Jun, KANG Zhongtao, et al. Ignition experiment and numerical simulation on a combustion heater with hydrogen and oxygen[J]. Journal of Aerospace Power, 2024, 39(9):20220821 doi: 10.13224/j.cnki.jasp.20220821
Citation: FANG Xinxin, WU Jun, KANG Zhongtao, et al. Ignition experiment and numerical simulation on a combustion heater with hydrogen and oxygen[J]. Journal of Aerospace Power, 2024, 39(9):20220821 doi: 10.13224/j.cnki.jasp.20220821

氢氧燃烧加热器点火试验和数值仿真研究

doi: 10.13224/j.cnki.jasp.20220821
基金项目: 国家自然科学基金(12202480,11902342); 高超声速冲压发动机技术重点实验室基金(WDZC6142703202208)
详细信息
    作者简介:

    方昕昕(1991-),男,工程师,博士,主要从事高超声速地面试验技术研究

    通讯作者:

    伍军(1981-),男,副研究员,硕士,主要从事高超声速地面试验技术研究。E-mail:Beiley1981@163.com

  • 中图分类号: V434+.22

Ignition experiment and numerical simulation on a combustion heater with hydrogen and oxygen

  • 摘要:

    点火试验和数值仿真研究了氢氧燃烧加热器,对比了二组元和三组元两种不同构型的加热器性能。试验结果表明:二组元和三组元燃烧加热器均实现了“自点火”,相较于三组元燃烧加热器,二组元燃烧加热器点火延迟时间减小约17.0%。试验中二组元和三组元燃烧加热器分别稳定燃烧190 ms和189 ms,没有出现不稳定燃烧。试验和数值仿真得到的高温点火区分布类似,三组元加热器高温点火区更集中于氢气喷孔之后,二组元加热器高温点火区呈现V形。从试验喷嘴图像可见,相较于二组元燃烧加热器,三组元燃烧加热器在喷嘴出口处烧蚀的面积更大,烧蚀部位的温度更高,与数值仿真结果一致。

     

  • 图 1  试验系统

    Figure 1.  Experimental system

    图 2  二级燃烧加热器和喷管系统

    Figure 2.  Secondary combustion heater and nozzle system

    图 3  数值仿真网格

    Figure 3.  Grid for the numerical simulation

    图 4  二组元燃烧加热器点火试验压力数据

    Figure 4.  Experimental pressure of bipropellant combustion heater

    图 5  三组元燃烧加热器点火试验压力数据

    Figure 5.  Experimental pressure of tripropellant combustion heater

    图 6  数值仿真温度场分布

    Figure 6.  Temperature flow field of numerical simulation

    图 7  二组元和三组元氢氧燃烧加热器不同Y-Z截面温度场分布

    Figure 7.  Temperature flow field on different Y-Z planes of bipropellant and tripropellant combustion heaters

    表  1  一级燃烧加热器参数

    Table  1.   Parameters of the first combustion heater

    工况 配气压力/MPa 温度/K 喉道直径/mm
    氢气 富氧空气 氢气 富氧空气 氢气 富氧空气 高温限流
    喉道
    氧气 空气
    二组元 9.39 2.49 7.65 280 280 2.4 8.0 18.7
    三组元 9.50 2.54 7.80
    下载: 导出CSV

    表  2  二级燃烧加热器参数

    Table  2.   Parameters of the secondary combustion heater

    工况 流量/(kg/s) 温度/K 等效喉道直径/mm 燃烧室尺寸/mm 喷管喉道
    直径/mm
    氢气 氧气 氢气 氧气 氢气 氧气 长度 直径
    二组元/三组元 0.03 0.342 280 280 2.62 5.14 400 120 29.68
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-10-27
  • 网络出版日期:  2023-12-26

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