Acta Aeronautica et Astronautica Sinica ›› 2025, Vol. 46 ›› Issue (2): 130547.doi: 10.7527/S1000-6893.2024.30547
• Fluid Mechanics and Flight Mechanics • Previous Articles
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:CLC Number:
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.
Table 3
Comparison of performance parameters between reference tunnel and test tunnel
| 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) |
Table A1
Profile coordinates of standand cascade
| 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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