Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter
The analysis of the aerodynamic interference of the downwash on wings under different intensities on both sides of the rotor of the composite high-speed helicopter, can provide a certain reference for the design and optimization of the aerodynamic shape of the similar configuration helicopter.The un...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Advances in Aeronautical Science and Engineering
2023-02-01
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| Series: | Hangkong gongcheng jinzhan |
| Subjects: | |
| Online Access: | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2022091 |
| _version_ | 1797823293740285952 |
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| author | LIU Chaofan ZHU Qinghua LIU Jia |
| author_facet | LIU Chaofan ZHU Qinghua LIU Jia |
| author_sort | LIU Chaofan |
| collection | DOAJ |
| description | The analysis of the aerodynamic interference of the downwash on wings under different intensities on both sides of the rotor of the composite high-speed helicopter, can provide a certain reference for the design and optimization of the aerodynamic shape of the similar configuration helicopter.The unsteady momentum source method is used to perform the numerical simulation of the flow field of a composite high-speed helicopter in hovering and forward flight states, and the aerodynamic effects of different downwash on both sides of the rotor on wings are analyzed.The effect of aerodynamic characteristics on changing the height of the rotor disc and the aspect ratio of wing is studied.The results show that, when the composite high-speed helicopter flies forward, the peak lift difference between the two sides of the wing is decreased with the increase of the rotor disc height, and the peak value falls at a lower speed.With the increase of the wing aspect ratio, the peak lift difference between the two sides is decreased.Under the condition of same speed after the peak value, the slender the wing is, the smaller the lift difference between the two sides is. |
| first_indexed | 2024-03-13T10:21:59Z |
| format | Article |
| id | doaj.art-8be6182053c949418cf5405f4e9c0fbc |
| institution | Directory Open Access Journal |
| issn | 1674-8190 |
| language | zho |
| last_indexed | 2024-03-13T10:21:59Z |
| publishDate | 2023-02-01 |
| publisher | Editorial Department of Advances in Aeronautical Science and Engineering |
| record_format | Article |
| series | Hangkong gongcheng jinzhan |
| spelling | doaj.art-8be6182053c949418cf5405f4e9c0fbc2023-05-20T08:56:58ZzhoEditorial Department of Advances in Aeronautical Science and EngineeringHangkong gongcheng jinzhan1674-81902023-02-01141384610.16615/j.cnki.1674-8190.2023.01.0420230104Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopterLIU Chaofan0ZHU Qinghua1LIU Jia2National Key Laboratory of Rotorcraft Aeromechanics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaNational Key Laboratory of Rotorcraft Aeromechanics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaNational Key Laboratory of Rotorcraft Aeromechanics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaThe analysis of the aerodynamic interference of the downwash on wings under different intensities on both sides of the rotor of the composite high-speed helicopter, can provide a certain reference for the design and optimization of the aerodynamic shape of the similar configuration helicopter.The unsteady momentum source method is used to perform the numerical simulation of the flow field of a composite high-speed helicopter in hovering and forward flight states, and the aerodynamic effects of different downwash on both sides of the rotor on wings are analyzed.The effect of aerodynamic characteristics on changing the height of the rotor disc and the aspect ratio of wing is studied.The results show that, when the composite high-speed helicopter flies forward, the peak lift difference between the two sides of the wing is decreased with the increase of the rotor disc height, and the peak value falls at a lower speed.With the increase of the wing aspect ratio, the peak lift difference between the two sides is decreased.Under the condition of same speed after the peak value, the slender the wing is, the smaller the lift difference between the two sides is.http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2022091momentum sourcecomposite high-speed helicopterrotorwingaerodynamic characteristics |
| spellingShingle | LIU Chaofan ZHU Qinghua LIU Jia Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter Hangkong gongcheng jinzhan momentum source composite high-speed helicopter rotor wing aerodynamic characteristics |
| title | Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter |
| title_full | Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter |
| title_fullStr | Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter |
| title_full_unstemmed | Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter |
| title_short | Aerodynamic effect analysis of rotor downwash on wings of composite high-speed helicopter |
| title_sort | aerodynamic effect analysis of rotor downwash on wings of composite high speed helicopter |
| topic | momentum source composite high-speed helicopter rotor wing aerodynamic characteristics |
| url | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2022091 |
| work_keys_str_mv | AT liuchaofan aerodynamiceffectanalysisofrotordownwashonwingsofcompositehighspeedhelicopter AT zhuqinghua aerodynamiceffectanalysisofrotordownwashonwingsofcompositehighspeedhelicopter AT liujia aerodynamiceffectanalysisofrotordownwashonwingsofcompositehighspeedhelicopter |