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两型超声速进气道平飞减速时的稳定性

符小刚 李俊浩 杨柳

符小刚, 李俊浩, 杨柳. 两型超声速进气道平飞减速时的稳定性[J]. 航空动力学报, 2024, 39(1):20210393 doi: 10.13224/j.cnki.jasp.20210393
引用本文: 符小刚, 李俊浩, 杨柳. 两型超声速进气道平飞减速时的稳定性[J]. 航空动力学报, 2024, 39(1):20210393 doi: 10.13224/j.cnki.jasp.20210393
FU Xiaogang, LI Junhao, YANG Liu. Stability of two types of supersonic inlets during a level deceleration flight[J]. Journal of Aerospace Power, 2024, 39(1):20210393 doi: 10.13224/j.cnki.jasp.20210393
Citation: FU Xiaogang, LI Junhao, YANG Liu. Stability of two types of supersonic inlets during a level deceleration flight[J]. Journal of Aerospace Power, 2024, 39(1):20210393 doi: 10.13224/j.cnki.jasp.20210393

两型超声速进气道平飞减速时的稳定性

doi: 10.13224/j.cnki.jasp.20210393
详细信息
    作者简介:

    符小刚(1983-),男,高级工程师,硕士,主要从事航空器进气道与发动机相容性飞行试验技术研究

  • 中图分类号: V217.1

Stability of two types of supersonic inlets during a level deceleration flight

  • 摘要:

    通过飞行试验,研究了一种二元斜板式及蚌式超声速进气道在马赫数1.5快收发动机油门平飞减速至马赫数为1.05过程中的畸变及稳定性水平。对比表明:减速过程中二元进气道总压畸变、稳定性裕度均随发动机换算转速的下降减小后保持稳定,而蚌式进气道畸变先上升再下降后保持稳定,稳定性裕度先下降再略微上升后保持稳定。减速过程前半段,蚌式进气道畸变更大,二元进气道稳定性裕度下降更快;减速过程后半段,两型进气道畸变水平接近,稳定性裕度均较低。分析也表明,仅使用流量系数的相对差值计算的进气道稳定裕度反映的进气道流通能力信息比使用总压恢复系数与流量系数之比的相对差值更全面,推荐采用前者作为进气道稳定性裕度评价指标。

     

  • 图 1  典型采用二元斜板可调式超声速进气道飞机(Su-35)及其进气道结构

    Figure 1.  Typical plane equipped with 2-D ramp adjustable supersonic inlet (Su-35) and structure of the inlet

    图 2  典型采用蚌式进气道飞机(F-35)及其进气道被动式流量调节

    Figure 2.  Typical plane equipped with bump inlet (F-35) and passive flow adjustment of the inlet

    图 3  进气道出口截面稳态及动态压力测点示意图

    Figure 3.  Sketch map of the steady and dynamic pressure measure point on exit section of the inlet

    图 4  两型进气道不同高度下超声速平飞减速时的出口截面总压畸变

    Figure 4.  Total pressure distortion of exit section of the two types of inlet during a supersonic level decelerate flight at different altitude

    图 5  平飞减速经过Ma=1.4,稳态及动态压力传感器测到的蚌式进气道出口压力值(Hp=H1

    Figure 5.  Level deceleration flying across Ma=1.4,pressure value measured with steady and dynamic pressure transducer at exit section of the bump inlet (Hp=H1

    图 6  平飞减速过程中两种进气道稳定性裕度的对比

    Figure 6.  Comparison of stability margins of the two types of inlet during a level decelerate flight

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出版历程
  • 收稿日期:  2021-07-25
  • 网络出版日期:  2023-10-16

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