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Effects of Leading Edge Erosion of Transonic Fan Rotor Blade on Tip Leakage Flow
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Ding-he LI1, Yi-bo WANG1, Lei SHI1, *, Ze-tong CHEN2, Qi JIANG3
Science Technology and Engineering | 2025, 25(11) : 4786 - 4792
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Science Technology and Engineering | 2025, 25(11): 4786-4792
• Papers·Aeronautics and Astronautics •
Effects of Leading Edge Erosion of Transonic Fan Rotor Blade on Tip Leakage Flow
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Ding-he LI1, Yi-bo WANG1, Lei SHI1, *, Ze-tong CHEN2, Qi JIANG3
Affiliations
  • 1 Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China
  • 2 Aeronautical Engineering Institute, Civil Aviation University of China, Tianjin 300300, China
  • 3 Aircraft Maintenance Engineering Department, Xiamen Airlines Co., Ltd, Xiamen 361009, China
Published: 2025-04-18 doi: 10.12404/j.issn.1671-1815.2403209
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Transonic fan rotor blades will suffer from morphological decay problems such as leading edge erosion in actual operation, and the flow field structure in the tip zone will change and then induce aerodynamic performance degradation. The effects of leading edge erosion on the tip leakage flow of the fan rotor were investigated from constant numerical computation in this paper. The results show that at the stall point of the eroded blade, its isentropic efficiency, total pressure ratio and mass flow rate decrease by 4.3%, 0.43% and 5.63%, respectively, and the leading-edge erosion also causes a decrease in the stabilized operating margin by 0.69%. For the flow in the tip zone, the leading-edge erosion causes an increase in the entropy increase area and intensity in the flow surface of S1 at the tip zone and the flow surface of S3 in the exit region, and the formation of a low Mach Number flow region in different blade heights; the leakage flow structure under the leading edge erosion undergoes malignant changes, the demarcation point of the main leakage flow and the secondary leakage flow is advanced, carrying more fluid for secondary leakage, and the leakage vortex deflection angle of the eroded blade reaches 30° from 15°, hitting the leading edge of the blade directly and causing flow blockage.

leading edge erosion  /  transonic  /  fan rotor blade  /  tip leakage flow  /  shock wave
Ding-he LI, Yi-bo WANG, Lei SHI, Ze-tong CHEN, Qi JIANG. Effects of Leading Edge Erosion of Transonic Fan Rotor Blade on Tip Leakage Flow[J]. Science Technology and Engineering, 2025 , 25 (11) : 4786 -4792 . DOI: 10.12404/j.issn.1671-1815.2403209
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Year 2025 volume 25 Issue 11
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Article Info
doi: 10.12404/j.issn.1671-1815.2403209
  • Receive Date：2024-04-30
  • Online Date：2025-07-09
  • Published：2025-04-18
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History
  • Received：2024-04-30
  • Revised：2024-08-01
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Affiliations
    1 Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China
    2 Aeronautical Engineering Institute, Civil Aviation University of China, Tianjin 300300, China
    3 Aircraft Maintenance Engineering Department, Xiamen Airlines Co., Ltd, Xiamen 361009, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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