| Citation: | Chen Yufei, Li Ziliang, Liu Taiqiu, et al. Effects of casing elliptical deformation on the aerodynamic stability of a transonic axial compressor rotor[J]. Journal of Aerospace Power, 2026, 42（X）：20250549 doi: 10.13224/j.cnki.jasp.20250549
|
This study investigated the impact of casing deformation on the Rotor 37 transonic compressor rotor using validated numerical simulations at design speed. The results showed that under the ideal(undeformed) casing condition, the breakdown of the rotor’s tip-leakage vortex served as the direct trigger for compressor stall. As τ increased, the compressor’s stability margin steadily decreased. At maximum deformation (τ = 0.9), stall margin dropped by 4.67 % relative to the ideal casing, and flow instability first appeared in passages adjacent to the smallest tip clearance. Simultaneously, casing deformation induced pronounced circumferential variability in the flow field and blockage-zone extent within the blade-tip region. On one hand, circumferential non-uniformity in leading-edge tip clearance and local flow incidence controlled the leading-edge leakage strength in each passage, shaping blockage-zone extent. Blockage was most severe near maximum tip clearance, triggering instability in that passage. On the other hand, circumferential non-uniformity in trailing-edge tip clearance and suction-side separation location controlled the trailing-edge leakage intensity and separation-blockage severity. These factors maximize blockage near minimum tip clearance, causing the earliest instability in that passage.
| [1] |
Dean, R. C , Jr , 1954, “The Influence of tip Clearance on Boundary –Layer Flow in a Rectilinear Casade, ”MIT Gas Turbine Laboratory Report No. 27-3.
|
| [2] |
Kunz R F, Lakshminarayana B, Basson A H. Investigation of tip clearance phenomena in an axial compressor cascade using Euler and navier–stokes procedures[J]. Journal of Turbomachinery, 1993, 115(3): 453-467.
|
| [3] |
Khalid S A, Khalsa A S, Waitz I A, et al. Endwall blockage in axial compressors[C]//Volume 1: Turbomachinery. American Society of Mechanical Engineers, 1998: V001T01A047.
|
| [4] |
Thomas H J. Unstable natural vibration of turbine rotors induced by the clearance flow in glands and blading[J]. Bulletin de L’ A. I. M., 1958, 71(11/12): 1039-1063.
|
| [5] |
Alford J S. Protecting turbomachinery from self-excited rotor whirl[J]. Journal of Engineering for Power, 1965, 87(4): 333-343. doi: 10.1115/1.3678270
|
| [6] |
Morris S C, Cameron J D, Bennington M A, et al. Performance and short length-scale disturbance generation in an axial compressor with non-uniform tip clearance[C]//Volume 6: Turbomachinery, Parts A, B, and C. ASMEDC, 2008: 667-679.
|
| [7] |
Song S J, Cho S H. Nonuniform flow in a compressor due to asymmetric tip clearance[J]. Journal of Turbomachinery, 2000, 122(4): 751-760. doi: 10.1115/1.1308569
|
| [8] |
Jüngst M, Liedtke S, Schiffer H P, et al. Aerodynamic effects in a transonic compressor with nonaxisymmetric tip clearance[C]//Volume 2A: Turbomachinery. American Society of Mechanical Engineers, 2018: V02AT45A007.
|
| [9] |
Kang Y S, Kang S H. Prediction of the nonuniform tip clearance effect on the axial compressor flow field[J]. Journal of Fluids Engineering, 2010, 132(5): 051110. doi: 10.1115/1.4001553
|
| [10] |
李剑雄, 陈颖秀, 侯安平. 非均匀间隙下进气畸变对风扇性能的影响[J]. 航空动力学报, 2020, 35(3): 532-539. Li Jianxiong, Chen Yingxiu, Hou Anping. Effects of inlet flow distortion on fan performance under nonuniform tip clearance[J]. Journal of Aerospace Power, 2020, 35(3): 532-539. (in Chinese doi: 10.13224/j.cnki.jasp.2020.03.009
Li Jianxiong, Chen Yingxiu, Hou Anping. Effects of inlet flow distortion on fan performance under nonuniform tip clearance[J]. Journal of Aerospace Power, 2020, 35(3): 532-539. (in Chinese) doi: 10.13224/j.cnki.jasp.2020.03.009
|
| [11] |
Young A M, Cao Teng, Day I J, et al. Accounting for eccentricity in compressor performance predictions[J]. Journal of Turbomachinery, 2017, 139(9): 091008. doi: 10.1115/1.4036201
|
| [12] |
Cameron J D, Bennington M A, Ross M H, et al. Effects of steady tip clearance asymmetry and rotor whirl on stall inception in an axial compressor[C]//Volume 6: Turbo Expo 2007, Parts A and B. ASMEDC, 2007: 457-468.
|
| [13] |
张浩浩, 朱铭敏, 羌晓青, 等. 基于喷管节流的轴流转子非轴对称间隙布局研究[J]. 工程热物理学报, 2022, 43(2): 331-340. Zhang Haohao, Zhu Mingmin, Qiang Xiaoqing, et al. Research on non-axisymmetric clearance layout of axial rotor based on nozzle throttling[J]. Journal of Engineering Thermophysics, 2022, 43(2): 331-340. (in Chinese
Zhang Haohao, Zhu Mingmin, Qiang Xiaoqing, et al. Research on non-axisymmetric clearance layout of axial rotor based on nozzle throttling[J]. Journal of Engineering Thermophysics, 2022, 43(2): 331-340. (in Chinese)
|
| [14] |
Graf M B, Wong T S, Greitzer E M, et al. Effects of nonaxisymmetric tip clearance on axial compressor performance and stability[J]. Journal of Turbomachinery, 1998, 120(4): 648-661. doi: 10.1115/1.2841774
|
| [15] |
向宏辉, 葛宁, 高杰, 等. 周向非均匀叶尖间隙对轴流压气机性能的影响[J]. 航空学报, 2018, 39(2): 61-72. Xiang Honghui, Ge Ning, Gao Jie, et al. Effect of circumferential non-uniform tip clearance on performance of axial compressor[J]. Acta Aeronautica et Astronautica Sinica, 2018, 39(2): 61-72. (in Chinese doi: 10.7527/S1000-6893.2017.121491
Xiang Honghui, Ge Ning, Gao Jie, et al. Effect of circumferential non-uniform tip clearance on performance of axial compressor[J]. Acta Aeronautica et Astronautica Sinica, 2018, 39(2): 61-72. (in Chinese) doi: 10.7527/S1000-6893.2017.121491
|
| [16] |
梁武昌, 楚武利, 朱俊强, 等. 非轴对称尖部间隙对轴流压气机性能影响的实验研究[J]. 航空动力学报, 2004, 19(2): 233-236. Liang Wuchang, Chu Wuli, Zhu Junqiang, et al. Effects of asymmetric tip clearance on axial flow compressor performance[J]. Journal of Aerospace Power, 2004, 19(2): 233-236. (in Chinese doi: 10.3969/j.issn.1000-8055.2004.02.013
Liang Wuchang, Chu Wuli, Zhu Junqiang, et al. Effects of asymmetric tip clearance on axial flow compressor performance[J]. Journal of Aerospace Power, 2004, 19(2): 233-236. (in Chinese) doi: 10.3969/j.issn.1000-8055.2004.02.013
|
| [17] |
孙玲. 转子尖部间隙布局对压气机性能影响的实验研究[D]. 西安: 西北工业大学, 2003. Sun Ling. Experimental investigation of layout of tip clearance effects on the performance of an axial-flow compressor[D]. Xi’an: Northwestern Polytechnical University, 2003. (in Chinese
Sun Ling. Experimental investigation of layout of tip clearance effects on the performance of an axial-flow compressor[D]. Xi’an: Northwestern Polytechnical University, 2003. (in Chinese)
|
| [18] |
di Mare L, Imregun M, Green J S. Effect of real geometry on compressor performance predictions[C]//Volume 7: Turbomachinery, Parts A and B. ASMEDC, 2009: 263-271.
|
| [19] |
Chen Yingxiu, Hou Anping, Zhang Mingming, et al. Effects of nonuniform tip clearance on fan performance and flow field[C]//Volume 2A: Turbomachinery. American Society of Mechanical Engineers, 2015: V02AT37A010.
|
| [20] |
李紫良, 陈宇飞, 王楠, 等. 机匣椭圆变形对亚声速压气机转子气动损失特性的影响研究[J]. 航空动力学报, 2026, 41(5): 193-203. Li Ziliang, Chen Yufei, Wang Nan, et al. Influence of elliptical casing deformation on aerodynamic loss performance of subsonic compressor rotor[J]. Journal of Aerospace Power, 2026, 41(5): 193-203. (in Chinese
Li Ziliang, Chen Yufei, Wang Nan, et al. Influence of elliptical casing deformation on aerodynamic loss performance of subsonic compressor rotor[J]. Journal of Aerospace Power, 2026, 41(5): 193-203. (in Chinese)
|
| [21] |
陈颖秀, 侯安平, 张明明, 等. 轴流压气机机匣变形对多排转子流场特性的影响[J]. 航空学报, 2016, 37(11): 3284-3295. Chen Yingxiu, Hou Anping, Zhang Mingming, et al. Effects of casing deformation on blade rows flow field characteristics in an axialflow compressor[J]. Acta Aeronautica et Astronautica Sinica, 2016, 37(11): 3284-3295. (in Chinese doi: 10.7527/S1000-6893.2016.0010
Chen Yingxiu, Hou Anping, Zhang Mingming, et al. Effects of casing deformation on blade rows flow field characteristics in an axialflow compressor[J]. Acta Aeronautica et Astronautica Sinica, 2016, 37(11): 3284-3295. (in Chinese) doi: 10.7527/S1000-6893.2016.0010
|
| [22] |
成铠, 陈云瑞, 孟凡杰, 等. 叶顶间隙非均匀对大型轴流风机性能的影响[J]. 西安交通大学学报, 2022, 56(10): 180-189. Cheng Kai, Chen Yunrui, Meng Fanjie, et al. Influence of non-uniform blade tip clearance on the performance of a large axial flow fan[J]. Journal of Xi’an Jiaotong University, 2022, 56(10): 180-189. (in Chinese doi: 10.7652/xjtuxb202210018
Cheng Kai, Chen Yunrui, Meng Fanjie, et al. Influence of non-uniform blade tip clearance on the performance of a large axial flow fan[J]. Journal of Xi’an Jiaotong University, 2022, 56(10): 180-189. (in Chinese) doi: 10.7652/xjtuxb202210018
|
DownLoad:
