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吞水对回流燃烧室部件性能影响的试验

郎旭东 李维 戴金鑫 杨大伟 邬俊 陈剑

郎旭东,李维,戴金鑫,等.吞水对回流燃烧室部件性能影响的试验[J].航空动力学报,2022,37(7):1345‑1351. doi: 10.13224/j.cnki.jasp.20210264
引用本文: 郎旭东,李维,戴金鑫,等.吞水对回流燃烧室部件性能影响的试验[J].航空动力学报,2022,37(7):1345‑1351. doi: 10.13224/j.cnki.jasp.20210264
LANG Xudong,LI Wei,DAI Jinxin,et al.Test on effect of swallowing water on component performance of reverse⁃flow combustor[J].Journal of Aerospace Power,2022,37(7):1345‑1351. doi: 10.13224/j.cnki.jasp.20210264
Citation: LANG Xudong,LI Wei,DAI Jinxin,et al.Test on effect of swallowing water on component performance of reverse⁃flow combustor[J].Journal of Aerospace Power,2022,37(7):1345‑1351. doi: 10.13224/j.cnki.jasp.20210264

吞水对回流燃烧室部件性能影响的试验

doi: 10.13224/j.cnki.jasp.20210264
详细信息
    作者简介:

    郎旭东(1981-),男,研究员,硕士,主要从事涡轴发动机燃烧室技术研究。

  • 中图分类号: V231.3

Test on effect of swallowing water on component performance of reverse⁃flow combustor

  • 摘要:

    以全环回流燃烧室验件为平台,试验研究了吞水量对燃烧室进口温度、燃烧效率、燃烧室当量温升、燃烧室出口温度分布系数(OTDF)、燃烧室出口径向温度分布系数(RTDF)等燃烧室性能的影响。试验结果表明:发动机不同的工作状态,在吞水量为燃烧室进口空气流量5%的范围内,随着燃烧室吞水量的增加,燃烧室进口温度、燃烧效率、总压损失和当量温升均会降低,地面慢车燃烧效率从99.3%下降到97.2%;燃烧出口温度场品质变差,设计点状态的燃烧室出口温度分布系数值由0.23升高到0.28;地面慢车燃烧室熄火油气比由0.004 5升高到0.006 5,熄火边界缩小。

     

  • 图 1  全环回流燃烧室试验件示意图

    Figure 1.  Sketch of the annular reverse⁃flow combustortest piece

    图 2  燃烧室部件吞水试验原理图

    Figure 2.  Schematic diagram of the swallowing water test of combustor component

    图 3  燃烧室吞水试验过程

    Figure 3.  Procedure of the swallowing water test

    图 4  吞水量对燃烧室进口空气温度的影响

    Figure 4.  Mass of swallowing water versus air temperature at the combustor inlet

    图 5  吞水量对燃烧效率的影响

    Figure 5.  Mass of swallowing water versus combustion efficiency

    图 6  吞水量对燃烧室当量温升的影响

    Figure 6.  Mass of swallowing water versus equivalent temperature rise of combustor

    图 7  吞水量对燃烧室OTDF的影响

    Figure 7.  Mass of swallowing water versus OTDF of combustor

    图 8  吞水量对燃烧室RTDF的影响

    Figure 8.  Mass of swallowing water versus RTDF of combustor

    图 9  吞水量对燃烧室总压损失的影响

    Figure 9.  Mass of swallowing water versus total pressure loss of combustor

    图 10  吞水量对燃烧室熄火油气比的影响

    Figure 10.  Mass of swallowing water versus combustor blowout FAR

    表  1  主要测试测量设备名称及精度

    Table  1.   Name and precision of main measurement instrument

    序号设备名称精度
    1标准流量喷嘴±1%
    2质量流量计±0.5%
    3压力测量系统±0.5%
    4K分度热电偶±2 K
    5B分度热电偶±5 K
    6GC⁃920气相色谱仪±1.0%
    下载: 导出CSV

    表  2  试验状态参数

    Table  2.   Test state parameters

    试验状态编号进口空气温度/K进口空气压力/MPa发动机状态
    1481.00.40地面慢车
    2701.01.49最大连续
    3710.81.55中间状态
    4717.71.59设计点
    下载: 导出CSV
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  • 收稿日期:  2021-05-26

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