Experimental Study of Aerodynamic and Bird Exclusion Characteristics of a Branched Turboprop Inlet Under Ground Suction Conditions
A turboprop aircraft is exposed to the risk of bird strikes during flight, which may have a serious impact on flight safety once the bird is sucked into the engine. In this study, the aerodynamic and bird exclusion characteristics of a branched turboprop inlet were tested on a branched turboprop inl...
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MDPI AG
2025-07-01
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| author | Ge Zhou Zhenlong Wu Huijun Tan |
| author_facet | Ge Zhou Zhenlong Wu Huijun Tan |
| author_sort | Ge Zhou |
| collection | DOAJ |
| description | A turboprop aircraft is exposed to the risk of bird strikes during flight, which may have a serious impact on flight safety once the bird is sucked into the engine. In this study, the aerodynamic and bird exclusion characteristics of a branched turboprop inlet were tested on a branched turboprop inlet–bird striking experiment system under ground suction conditions. The ingestion processes of the bird were captured by a high-speed camera system. The static pressure at the inner wall of the inlet during the ingestion process was measured. The results indicate that when a low-speed bird at a large incident angle impacts on the wall of the inlet near the lower lip under ground suction conditions, the bird is easily sucked into the core duct. Conversely, it is more likely to be excluded by the bypass duct. Moreover, when the bird moves into the inlet, the static pressure on the wall of the area where it passes through increases significantly. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-bf6f871f97924eb7aa31b99be5b447302025-08-20T03:35:27ZengMDPI AGAerospace2226-43102025-07-0112764010.3390/aerospace12070640Experimental Study of Aerodynamic and Bird Exclusion Characteristics of a Branched Turboprop Inlet Under Ground Suction ConditionsGe Zhou0Zhenlong Wu1Huijun Tan2College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaCollege of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaA turboprop aircraft is exposed to the risk of bird strikes during flight, which may have a serious impact on flight safety once the bird is sucked into the engine. In this study, the aerodynamic and bird exclusion characteristics of a branched turboprop inlet were tested on a branched turboprop inlet–bird striking experiment system under ground suction conditions. The ingestion processes of the bird were captured by a high-speed camera system. The static pressure at the inner wall of the inlet during the ingestion process was measured. The results indicate that when a low-speed bird at a large incident angle impacts on the wall of the inlet near the lower lip under ground suction conditions, the bird is easily sucked into the core duct. Conversely, it is more likely to be excluded by the bypass duct. Moreover, when the bird moves into the inlet, the static pressure on the wall of the area where it passes through increases significantly.https://www.mdpi.com/2226-4310/12/7/640branched turboprop inletbypass ductaerodynamic characteristicforeign object exclusionbird |
| spellingShingle | Ge Zhou Zhenlong Wu Huijun Tan Experimental Study of Aerodynamic and Bird Exclusion Characteristics of a Branched Turboprop Inlet Under Ground Suction Conditions Aerospace branched turboprop inlet bypass duct aerodynamic characteristic foreign object exclusion bird |
| title | Experimental Study of Aerodynamic and Bird Exclusion Characteristics of a Branched Turboprop Inlet Under Ground Suction Conditions |
| title_full | Experimental Study of Aerodynamic and Bird Exclusion Characteristics of a Branched Turboprop Inlet Under Ground Suction Conditions |
| title_fullStr | Experimental Study of Aerodynamic and Bird Exclusion Characteristics of a Branched Turboprop Inlet Under Ground Suction Conditions |
| title_full_unstemmed | Experimental Study of Aerodynamic and Bird Exclusion Characteristics of a Branched Turboprop Inlet Under Ground Suction Conditions |
| title_short | Experimental Study of Aerodynamic and Bird Exclusion Characteristics of a Branched Turboprop Inlet Under Ground Suction Conditions |
| title_sort | experimental study of aerodynamic and bird exclusion characteristics of a branched turboprop inlet under ground suction conditions |
| topic | branched turboprop inlet bypass duct aerodynamic characteristic foreign object exclusion bird |
| url | https://www.mdpi.com/2226-4310/12/7/640 |
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