Investigation and Improvement of Stall Characteristic of High-Lift Configuration without Slats
In order to simplify the manufacturing process or because of the limitation of the propulsion system, business jet, small civil airplane, and turboprop aircraft are always designed without leading-edge slats, which poses a great challenge to the flight safety during takeoff and landing. Focusing on...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/7859482 |
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| _version_ | 1832550677555970048 |
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| author | Zhao Yang Jie Li Jing Jin Heng Zhang Youxu Jiang |
| author_facet | Zhao Yang Jie Li Jing Jin Heng Zhang Youxu Jiang |
| author_sort | Zhao Yang |
| collection | DOAJ |
| description | In order to simplify the manufacturing process or because of the limitation of the propulsion system, business jet, small civil airplane, and turboprop aircraft are always designed without leading-edge slats, which poses a great challenge to the flight safety during takeoff and landing. Focusing on the low-speed stall and poststall conditions, we investigated the aerodynamic characteristics and flow mechanism of high-lift configuration without slats using an improved delayed detached eddy simulation (IDDES) model which is validated by numerical simulations of the Common Research Model (CRM). Based on the analysis of the calculated results, conclusion can be made that the stall behavior of the configurations is directly related to the onset and evaluation of flow separation on the suction side. And through further research, an efficient evaluation method that is capable of qualitatively predicting the stall performance of two-element high-lift configuration by stall angle distribution of wing sections is proposed. By using the evaluation method, together with design rules summarized from the present study, high-lift configuration with mild-stall characteristic can be obtained in the preliminary stage of design. |
| format | Article |
| id | doaj-art-147d077fb59a44958ee4a48b67ef042d |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-147d077fb59a44958ee4a48b67ef042d2025-02-03T06:05:59ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742019-01-01201910.1155/2019/78594827859482Investigation and Improvement of Stall Characteristic of High-Lift Configuration without SlatsZhao Yang0Jie Li1Jing Jin2Heng Zhang3Youxu Jiang4School of Aeronautics, Northwestern Polytechnical University, 710072 Xi’an, ChinaSchool of Aeronautics, Northwestern Polytechnical University, 710072 Xi’an, ChinaShanghai Aircraft Design and Research Institute, Commercial Aircraft Corporation of China Ltd., 200126 Shanghai, ChinaSchool of Aeronautics, Northwestern Polytechnical University, 710072 Xi’an, ChinaSchool of Aeronautics, Northwestern Polytechnical University, 710072 Xi’an, ChinaIn order to simplify the manufacturing process or because of the limitation of the propulsion system, business jet, small civil airplane, and turboprop aircraft are always designed without leading-edge slats, which poses a great challenge to the flight safety during takeoff and landing. Focusing on the low-speed stall and poststall conditions, we investigated the aerodynamic characteristics and flow mechanism of high-lift configuration without slats using an improved delayed detached eddy simulation (IDDES) model which is validated by numerical simulations of the Common Research Model (CRM). Based on the analysis of the calculated results, conclusion can be made that the stall behavior of the configurations is directly related to the onset and evaluation of flow separation on the suction side. And through further research, an efficient evaluation method that is capable of qualitatively predicting the stall performance of two-element high-lift configuration by stall angle distribution of wing sections is proposed. By using the evaluation method, together with design rules summarized from the present study, high-lift configuration with mild-stall characteristic can be obtained in the preliminary stage of design.http://dx.doi.org/10.1155/2019/7859482 |
| spellingShingle | Zhao Yang Jie Li Jing Jin Heng Zhang Youxu Jiang Investigation and Improvement of Stall Characteristic of High-Lift Configuration without Slats International Journal of Aerospace Engineering |
| title | Investigation and Improvement of Stall Characteristic of High-Lift Configuration without Slats |
| title_full | Investigation and Improvement of Stall Characteristic of High-Lift Configuration without Slats |
| title_fullStr | Investigation and Improvement of Stall Characteristic of High-Lift Configuration without Slats |
| title_full_unstemmed | Investigation and Improvement of Stall Characteristic of High-Lift Configuration without Slats |
| title_short | Investigation and Improvement of Stall Characteristic of High-Lift Configuration without Slats |
| title_sort | investigation and improvement of stall characteristic of high lift configuration without slats |
| url | http://dx.doi.org/10.1155/2019/7859482 |
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