非均匀强余旋进气下一体化加力燃烧室支板整流特性研究

席玉茹; 王成淇; 田泽民; 李井华; 颜应文

doi:10.13224/j.cnki.jasp.20240758

非均匀强余旋进气下一体化加力燃烧室支板整流特性研究

doi: 10.13224/j.cnki.jasp.20240758

席玉茹^1,,
王成淇^{1, 2},
田泽民¹,
李井华^1,*, ,,
颜应文¹

1.
南京航空航天大学能源与动力学院，南京 210016
2.
中国航发四川燃气涡轮研究院，成都 610500

基金项目: 国家科技重大专项（J2019-Ⅲ-0004-0047）；航空发动机及燃气轮机基础科学中心项目（P2022-B-Ⅱ-019-001）

详细信息

作者简介:
席玉茹（2000-），女，硕士生，研究方向为动力工程及工程热物理。E-mail：3271986701@qq.com

通讯作者:
李井华（1981-），女，副教授，博士，研究方向为航空发动机燃烧试验与仿真。E-mail：lijinghua@nuaa.edu.cn

中图分类号: V231.2
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出版历程
- 收稿日期: 2024-11-08
- 网络出版日期: 2026-03-23

Research on rectification strut characteristics of an integrated afterburner with strong cosine non-uniform inflow

XI Yuru^1
,,
WANG Chengqi^{1, 2},
TIAN Zemin¹,
LI Jinghua^{1,*
, ,},
YAN Yingwen¹

1.
College of Energy and Power Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing 210016，China
2.
Sichuan Gas Turbine Establishment，Aero Engine Corporation of China，Chengdu 610500，China

摘要

摘要:
为优化一体化加力燃烧室中的整流支板设计方案，在非均匀强余旋进气条件下开展了支板整流特性的试验研究，设计了不同构型的余旋角发生器用以复现非均匀强余旋进气条件，分析了不同构型支板的整流效果，并对不同构型支板的流动损失进行了研究。结果表明：设计的余旋角发生器能够为整流支板构建强余旋非均匀气流条件；弯曲角度与进气余旋角匹配的支板设计具有最好的整流特性，进气余旋角与支板弯曲角度不匹配会导致支板的整流特性变差，其中支板对马赫数非均匀特征的整流特性受影响显著；支板的流动损失随着马赫数的增加而增大，整流特性最佳的支板的流动损失随马赫数增长缓慢，且损失不大于2.6%。
- 加力燃烧室 /
- 整流支板 /
- 非均匀 /
- 余旋角 /
- 流动损失
Abstract:
In order to optimize the design of strut in the integrated afterburner, the rectification characteristics of the strut under the non-uniform inlet of strong cosine rotation were investigated. Different structures of cosine rotation generator were designed to reproduce the non-uniform inlet of strong cosine rotation. The rectification effects of different struts and their flow loss were analyzed. The results showed that the generators could reproduce the non-uniform inlet of strong cosine rotation; the designed strut had the best rectification effect when its bending angle matched the cosine rotation angle of inlet; the mismatching of angle led to the worse rectification effect, especially in terms of non-uniform Mach number; the flow loss of strut increased with the increase of Mach number of inlet, the flow loss of strut with best rectification increased slowly with Mach number, which was within 2.6%.
- afterburner /
- rectification strut /
- non-uniform /
- cosine rotation angle /
- flow loss

HTML

图 1 一体化加力燃烧室结构

Figure 1. Structure of the integrated afterburner

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图 2 简化模型（单位：mm）

Figure 2. Simplified model （unit：mm）

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图 3 余旋角发生器构形

Figure 3. Structures of cosine rotation generator

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图 4 支板构形

Figure 4. Structures of struts

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图 5 试验段结构

1 总静压探针； 2 热电偶； 3 导流钝体； 4 余弦角发生器；5 支板进口截面； 6 支板；7 支板出口/稳定器进口截面；8 稳定器； 9 五孔探针。

Figure 5. Structure of experimental setup

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图 6 支板进气截面采样点分布（单位：mm）

Figure 6. Distribution of sampling points in the strut inlet cross-section （unit：mm）

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图 7 支板出口截面采样点分布（单位：mm）

Figure 7. Distribution of sampling points in the strut outlet cross-section （unit：mm）

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图 8 五孔探针原理图

Figure 8. Schematic diagram of five-hole probe

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图 9 不同平均来流马赫数下支板进气截面马赫数分布

Figure 9. Mach number distribution at strut inlet section under different mean incoming flow Mach numbers

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图 10 不同平均来流马赫数下支板进气截面余旋角分布

Figure 10. Cosine rotation angle distribution at strut inlet section under different mean incoming flow Mach numbers

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图 11 不同构型支板出口截面气流马赫数分布

Figure 11. Flow Mach number distribution at strut outlet section under different strut configurations

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图 12 不同构型支板出口截面气流余旋角分布

Figure 12. Flow cosine rotation angle distribution at strut outlet section under different strut configurations

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图 13 不同进气条件下支板出口截面气流马赫数分布

Figure 13. Distribution of struts outlet Mach number under different inlet conditions

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图 14 不同进气条件下支板出口截面气流余旋角分布

Figure 14. Distribution of struts outlet cosine rotation angle under different inlet conditions

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图 15 不同工况下的支板流动损失

Figure 15. Flow loss under different operating conditions of struts

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表 1 结构参数

Table 1. Structural parameters

位置	编号	弯曲角度θ/（°）	长度 L/mm	最大宽度 f₁/mm
发生器前缘			35	25
发生器主体	g1	20	354	25
	g2	22.5	311	25
	g3	25	277	25
支板主体	s1	20	354	25
	s2	22.5	311	25
	s3	25	277	25
稳定器			35	25

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表 2 试验工况来流参数

Table 2. Parameter of incoming flow operating conditions

工况	流量/（kg/s）	马赫数	温度/K	静压/kPa
C1	1.3	0.30	310	115
C2	1.5	0.32	310	121
C3	1.75	0.36	310	136
C4	2.0	0.38	310	155

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表 3 不同工况下支板进气的平均参数

Table 3. Average parameters for intake of struts under different operating conditions

工况	平均马赫数	马赫数不均匀度/%	平均余旋角/（°）	余旋角不均匀度/%
C1	0.30	50.99	21.1	33.28
C2	0.32	52.61	21.2	39.85
C3	0.36	71.04	22.3	59.98
C4	0.38	92.56	22.3	59.74

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表 4 不同支板在出口处的不均匀度评价指标

Table 4. Non-uniform evaluation of different struts in the outlet

编号	支板弯曲角度/ （°）	平均马赫数	马赫数不均匀度/ %	平均余旋角/ （°）	余旋角不均匀度/ %
s1	20	0.6644	23.84	2.05	18.01
s2	22.5	0.6644	7.79	2.22	19.31
s3	25	0.6639	11.81	2.28	19.28

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表 5 不同余旋角进气下支板出口处的不均匀度评价指标

Table 5. Non-uniform evaluation of different inlet cosine rotation angles in the struts outlet

编号	余旋角发生器角度/（°）	平均马赫数	马赫数不均匀度/ %	平均余旋角/ （°）	余旋角不均匀度/ %
g1	20	0.6542	11.08	2.162	24.42
g2	22.5	0.6644	7.79	2.227	19.31
g3	25	0.6536	16.57	2.123	21.74

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