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煤油燃料宽域冲压旋转爆震燃烧特性

舒晨 顾福涛 陈斌 晏成龙 仝毅恒 林伟

舒晨, 顾福涛, 陈斌, 晏成龙, 仝毅恒, 林伟. 煤油燃料宽域冲压旋转爆震燃烧特性[J]. 气体物理, 2024, 9(2): 21-32. doi: 10.19527/j.cnki.2096-1642.1082
引用本文: 舒晨, 顾福涛, 陈斌, 晏成龙, 仝毅恒, 林伟. 煤油燃料宽域冲压旋转爆震燃烧特性[J]. 气体物理, 2024, 9(2): 21-32. doi: 10.19527/j.cnki.2096-1642.1082
SHU Chen, GU Futao, CHEN Bin, YAN Chenglong, TONG Yiheng, LIN Wei. Rotating Detonation Combustion Characteristics of Kerosene-Fueled Wide-Area Scramjets[J]. PHYSICS OF GASES, 2024, 9(2): 21-32. doi: 10.19527/j.cnki.2096-1642.1082
Citation: SHU Chen, GU Futao, CHEN Bin, YAN Chenglong, TONG Yiheng, LIN Wei. Rotating Detonation Combustion Characteristics of Kerosene-Fueled Wide-Area Scramjets[J]. PHYSICS OF GASES, 2024, 9(2): 21-32. doi: 10.19527/j.cnki.2096-1642.1082

煤油燃料宽域冲压旋转爆震燃烧特性

doi: 10.19527/j.cnki.2096-1642.1082
详细信息
    作者简介:

    舒晨(1999—)男, 硕士, 主要研究方向为爆震推进。E-mail: shuchenhgd@163.com

    通讯作者:

    林伟(1987-)男, 博士, 副教授, 主要研究方向为空天推进技术。E-mail: linweiqy@163.com

  • 中图分类号: V231.1

Rotating Detonation Combustion Characteristics of Kerosene-Fueled Wide-Area Scramjets

  • 摘要: 通过三维数值仿真的方法, 研究了Ma=3~7飞行工况下, 煤油燃料冲压旋转爆震燃烧特性。在Ma=3飞行工况下, 由于燃料雾化蒸发效果较差, 无法实现煤油燃料的爆震燃烧。Ma=4, 5, 6的飞行工况下, 随着飞行Mach数的增大, 波头数目整体上逐渐增多, 分别为单波、三波、五波模态; 但传播速度逐渐减小; 冲压模态下, 液态燃料雾化蒸发效果较好, 但流场内均不同程度地残存有煤油蒸气, 其未参加反应便排出燃烧室。Ma=7的飞行工况下, 由于来流接近CJ速度, 流场将以驻定爆震模态组织燃烧。

     

  • 图  1  冲压旋转爆震环形燃烧室示意图

    Figure  1.  Annular combustion chamber for scramjet rotating detonation

    图  2  不同网格尺度下的流场压力云图

    Figure  2.  Pressure contour at different grid scales

    图  3  Ma=3, H=15 km飞行工况下煤油燃料冲压旋转爆震解耦云图

    Figure  3.  Decoupled contour for rotating detonation combustion of kerosene-fueled scramjet at Ma=3, H=15 km

    图  4  Ma=4, H=20 km飞行工况下三维环形燃烧室内流场云图

    Figure  4.  Contour of flow field in a three-dimensional annular combustion chamber at Ma=4, H=20 km

    图  5  X=105 mm,Y=0 mm,Z=-60 mm处监测点压力、温度随时间变化图

    Figure  5.  Pressure and temperature curves with time at the monitoring point at X=105 mm, Y=0 mm, Z=-60 mm

    图  6  R=105 mm流场环面展开云图

    Figure  6.  Annular contours at R=105 mm

    图  7  燃烧室内燃油粒径及爆震波头压力等值面

    Figure  7.  Fuel particle size and pressure iso-surface of detonation wave head in combustion chamber

    图  8  稳定传播阶段粒径分布统计

    Figure  8.  Particle size distribution statistics in stable propagation stage

    图  9  Ma=5, H=24 km飞行工况下流场云图

    Figure  9.  Contours of flow field in a three-dimensional annular combustion chamber at Ma=5, H=24 km

    图  10  X=105 mm, Y=0 mm, Z=120 mm监测点处的压力及温度随时间变化曲线

    Figure  10.  Pressure and temperature curves with time at the monitoring point at X=105 mm, Y=0 mm, Z=120 mm

    图  11  R=105 mm流场环面展开云图

    Figure  11.  Annular contours at R=105 mm

    图  12  环形燃烧室内燃油粒径及爆震波头等值面

    Figure  12.  Fuel particle size and pressure iso-surface of detonation wave head in annular combustion chamber

    图  13  粒径分布曲线

    Figure  13.  Particle size distribution curve

    图  14  Ma=6, H=28 km飞行工况下三维环形燃烧室内流场云图

    Figure  14.  Contour of flow field in a three-dimensional annular combustion chamber at Ma=6, H=28 km

    图  15  X=105 mm, Y=0 mm, Z=110 mm监测点处的压力及温度随时间变化曲线

    Figure  15.  Pressure and temperature curves with time at the monitoring point at X=105 mm, Y=0 mm, Z=110 mm

    图  16  环形燃烧室二维环面展开图

    Figure  16.  Two-dimensional annular expansion diagram of annular combustion chamber

    图  17  燃料粒径分布及爆震波头压力等值面

    Figure  17.  Fuel particle size and pressure iso-surface of detonation wave head in annular combustion chamber

    图  18  燃料液滴尺寸分布图

    Figure  18.  Fuel droplet size distribution

    图  19  Ma=7, H=30 km飞行工况时R=105 mm处环面

    Figure  19.  Annular flow fields at R=105 mm in flight condition of Ma=7, H=30 km

    图  20  燃烧室内燃料液滴分布及驻定爆震波头分布

    Figure  20.  Fuel droplet and stationary detonation wave head in combustion chamber

    表  1  化学反应方程式及参数

    Table  1.   Chemical reaction equations and parameters

    reaction equation A E/(J/(kg·mol))
    C12H23+17.75O2=12CO2+11.5H2O 2.58×109 1.25×108
    下载: 导出CSV

    表  2  Ma=3~7飞行工况下隔离段入口条件

    Table  2.   Entrance conditions of isolation section at Ma=3~7

    H/km Ma Pin/kPa Tin/K Main P0/kPa Ps/kPa Ts/K Pout/kPa
    15 3 442.51 606.69 1.5 252.23 68.71 418.41 12.05
    20 4 831.31 909.0 2 415.65 53.12 505.0 5.46
    24 5 1 550.62 1 323.1 2.5 697.78 40.84 588.04 2.93
    28 6 2 504.56 1 841.1 3 1 001.83 27.27 657.54 1.586
    30 7 4 847.74 2 426.2 3.5 1 696.709 22.25 703.25 1.17
    下载: 导出CSV
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  • 收稿日期:  2023-08-24
  • 修回日期:  2023-12-04

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