蔡明1,2, 高丽敏1(
), 李瑞宇1, 欧阳波1, 刘波1
收稿日期:2024-04-18
修回日期:2024-05-06
接受日期:2024-07-25
出版日期:2024-08-21
发布日期:2024-08-20
通讯作者:
高丽敏
E-mail:gaolm@nwpu.edu.cn
基金资助:
Ming CAI1,2, Limin GAO1(
), Ruiyu LI1, Bo OUYANG1, Bo LIU1
Received:2024-04-18
Revised:2024-05-06
Accepted:2024-07-25
Online:2024-08-21
Published:2024-08-20
Contact:
Limin GAO
E-mail:gaolm@nwpu.edu.cn
Supported by:摘要:
平面叶栅风洞标模是轴流压气机设计体系建设以及推动平面叶栅试验技术标准化的关键。基于西北工业大学平面叶栅风洞完成了具有典型亚声速可控扩散叶型的压气机标模叶栅的设计和试验。采用自主建立的流场品质综合调控系统保证了标模叶栅的来流准确性、流场周期性以及展向二维性,在此基础上获取了标模叶栅的进气角特性、轴向密流比特性、叶片表面等熵马赫数分布以及叶栅尾迹分布,并与德国宇航院风洞公开的参考叶栅数据进行了对比。研究表明:标模叶栅流场周期性和准确性良好,具有4个连续通道的进口均匀区域和2个连续通道的出口周期性区域;测量通道的进口马赫数偏差不超过0.005,轴向密流比偏差不超过0.02;出口气流的周期性指数不超过2。与参考叶栅数据的对比表明,设计马赫数0.62下,标模叶栅和参考叶栅的损失、出气角、静压比随进气角的变化趋势基本一致。由于出口测量位置差异导致标模叶栅的损失和出气角较参考叶栅偏大,但静压比基本相同;2套叶栅的叶片表面等熵马赫数分布高度一致。总体而言,建立的标模叶栅试验数据全面、可靠性高。
中图分类号:
蔡明, 高丽敏, 李瑞宇, 欧阳波, 刘波. 亚声速压气机平面叶栅风洞标准模型建立[J]. 航空学报, 2025, 46(2): 130547.
Ming CAI, Limin GAO, Ruiyu LI, Bo OUYANG, Bo LIU. Establishment of standard model of linear cascade wind tunnel for subsonic compressor[J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(2): 130547.
表3
参考风洞和试验风洞参数对比
| 主要参数 | 参考风洞[ | 试验风洞 |
|---|---|---|
| 类型 | 连续式 | 连续式 |
| 流量/(kg·s-1) | 12.9 | 9.9 |
| 进口马赫数 | 0.2~1.4 | 0.3~0.95 |
| 进口雷诺数 | 1×105~3×106 | 3×105~1×106 |
| 进气角/(°) | -10~70 | 0~90 |
| 湍流度/% | 0.5~1 | 0.5~2 |
| 风口尺寸(宽×高)/mm2 | 168×330 | 100×300 |
| 周期性控制 | 试验段周向端壁抽吸 | 试验段周向端壁抽吸 |
| 二维性控制 | 叶栅端壁抽吸 | 叶栅端壁抽吸 |
| MP1距前缘额线的轴向距离/mm | 24(0.34C,C=70 mm) | 30(0.6C,C=50 mm) |
| MP2距尾缘额线的轴向距离/mm | 24(0.34C,C=70 mm) | 55(1.1C,C=50 mm) |
表A1
标模叶栅的叶型几何坐标 (mm)
| 吸力面 | 压力面 | 吸力面 | 压力面 | ||||
|---|---|---|---|---|---|---|---|
| x | y | x | y | x | y | x | y |
| 0.04 | -0.2 | 0.04 | -0.20 | 26.61 | 5.68 | 27.07 | 1.08 |
| 0.01 | -0.1 | 0.09 | -0.29 | 27.62 | 5.52 | 28.09 | 1.11 |
| 0 | 0 | 0.16 | -0.36 | 28.63 | 5.35 | 29.12 | 1.13 |
| 0.02 | 0.1 | 0.25 | -0.42 | 29.64 | 5.16 | 30.15 | 1.15 |
| 0.06 | 0.19 | 0.34 | -0.46 | 30.65 | 4.96 | 31.17 | 1.15 |
| 0.12 | 0.28 | 0.44 | -0.48 | 31.65 | 4.74 | 32.20 | 1.14 |
| 0.19 | 0.35 | 0.54 | -0.50 | 32.65 | 4.51 | 33.22 | 1.13 |
| 0.26 | 0.43 | 0.64 | -0.51 | 33.65 | 4.26 | 34.25 | 1.10 |
| 0.33 | 0.5 | 0.75 | -0.52 | 34.64 | 4.01 | 35.28 | 1.05 |
| 0.41 | 0.57 | 0.85 | -0.52 | 35.64 | 3.75 | 36.30 | 1.00 |
| 0.49 | 0.63 | 0.95 | -0.53 | 36.63 | 3.47 | 37.33 | 0.94 |
| 0.57 | 0.7 | 1.05 | -0.53 | 37.61 | 3.19 | 38.35 | 0.87 |
| 0.65 | 0.76 | 1.16 | -0.54 | 38.6 | 2.9 | 39.37 | 0.78 |
| 0.73 | 0.82 | 1.26 | -0.54 | 39.58 | 2.61 | 40.39 | 0.68 |
| 0.81 | 0.88 | 1.36 | -0.54 | 40.56 | 2.31 | 41.41 | 0.56 |
| 1.69 | 1.41 | 1.46 | -0.55 | 41.55 | 2.02 | 42.43 | 0.42 |
| 2.61 | 1.88 | 2.49 | -0.57 | 42.53 | 1.72 | 43.45 | 0.29 |
| 3.54 | 2.3 | 3.52 | -0.56 | 43.51 | 1.43 | 44.47 | 0.15 |
| 4.49 | 2.7 | 4.54 | -0.53 | 44.5 | 1.13 | 45.48 | 0 |
| 5.44 | 3.07 | 5.57 | -0.49 | 45.48 | 0.83 | 46.50 | -0.16 |
| 6.41 | 3.42 | 6.59 | -0.44 | 46.46 | 0.53 | 47.51 | -0.33 |
| 7.38 | 3.75 | 7.62 | -0.37 | 47.44 | 0.24 | 48.52 | -0.51 |
| 8.36 | 4.05 | 8.64 | -0.29 | 48.43 | -0.06 | 49.43 | -0.68 |
| 9.35 | 4.34 | 9.66 | -0.20 | 49.41 | -0.36 | 49.53 | -0.70 |
| 10.34 | 4.61 | 10.69 | -0.10 | 49.51 | -0.39 | 49.63 | -0.72 |
| 11.34 | 4.85 | 11.71 | -0.01 | 49.6 | -0.42 | 49.73 | -0.74 |
| 12.34 | 5.08 | 12.73 | 0.09 | 49.7 | -0.45 | 49.83 | -0.76 |
| 13.34 | 5.29 | 13.75 | 0.19 | 49.8 | -0.48 | 49.93 | -0.78 |
| 14.35 | 5.48 | 14.77 | 0.28 | 49.9 | -0.51 | 49.95 | -0.79 |
| 15.36 | 5.65 | 15.80 | 0.37 | 50 | -0.54 | 49.97 | -0.79 |
| 16.38 | 5.79 | 16.82 | 0.46 | 50.02 | -0.55 | 49.99 | -0.78 |
| 17.4 | 5.91 | 17.84 | 0.54 | 50.03 | -0.56 | 50.01 | -0.78 |
| 18.42 | 6.01 | 18.87 | 0.61 | 50.05 | -0.57 | 50.03 | -0.77 |
| 19.45 | 6.08 | 19.89 | 0.69 | 50.06 | -0.59 | 50.04 | -0.75 |
| 20.47 | 6.12 | 20.92 | 0.76 | 50.07 | -0.61 | 50.06 | -0.74 |
| 21.5 | 6.13 | 21.94 | 0.83 | 50.08 | -0.62 | 50.07 | -0.72 |
| 22.52 | 6.1 | 22.96 | 0.89 | 50.08 | -0.64 | 50.08 | -0.70 |
| 23.55 | 6.04 | 23.99 | 0.94 | 50.09 | -0.66 | ||
| 24.57 | 5.95 | 25.01 | 1.00 | 50.08 | -0.68 | ||
| 25.59 | 5.83 | 26.04 | 1.04 | 50.08 | -0.7 | ||
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