| 李 伟，邸 东，刘云鹏，陈登炳，颜应文.3旋流燃烧室头部冷态流场数值计算与试验验证[J].航空发动机,2023,49(1):103-108 |
| 3旋流燃烧室头部冷态流场数值计算与试验验证 |
| Numerical Investigation and Experimental Verification of the Cold Flow Field of a Triple Swirl Combustor |
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| DOI： |
| 中文关键词: 3旋流燃烧室 冷态流场 光学观测窗 粒子测速仪 冷却孔 回流区 航空发动机 |
| 英文关键词:triple swirl combustor cold flow field observation-window Particle Image Velocimetry cooling hole recirculation zone aeroengine |
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| 中文摘要: |
| 为了探究单管燃烧室壁面开设光学观察窗与3维倾斜冷却孔对燃烧室冷态头部流场结构的影响规律，利用CFD软件对
某型发动机单头部燃烧室结构及简化结构的流场特性进行数值计算，并利用粒子测速仪（PIV）对开设光学观察窗的单管燃烧室头
部冷态流场进行了试验验证。结果表明：单管燃烧室冷态流场数值计算结果与PIV测量结果基本相同，验证了数值计算的准确
性。燃烧室进口空气流量的增加不影响燃烧室回流区的大小；单管燃烧室壁面冷却孔的布置位置对冷态流场中心回流区几乎无
影响；在单管燃烧室水平方向壁面上开设光学观察窗，对水平方向的回流区影响较大，而垂直平面上的回流区几乎不受影响。 |
| 英文摘要: |
| In order to explore the influence of optical observation window and 3D inclined cooling hole on the cold flow field structure
of the can-type combustor，flow field characteristics of the can-type combustor baseline structure and the simplified structure were numeri?
cally investigated by CFD software，and the Particle Image Velocimetry（PIV）was used to verify the cold flow field at the can-type com?
bustor head with an optical observation window. The results show that the numerical results of the cold flow field in the can-type combustor
are basically the same as those measured by PIV，which verifies the accuracy of the numerical calculation. The increase of the inlet air flow
rate of the combustor does not affect the size of the recirculation zone of the combustor. The location of the cooling holes on the wall of the
can-type combustor has little effect on the central recirculation zone of the cold flow field. As the optical observation window is set on the
horizontal wall of the can-type combustor，the recirculation zone on the horizontal plane is greatly affected，while the vertical plane is al?
most unaffected. |
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