A Moore-Greitzer Model for Ducted Fans in Ground Effect
Ducted fans are widely used in unmanned aerial vehicles due to their high propulsive efficiency and safety. The aerodynamics are complex within the vicinity of the ground, including take-off, landing and hovering. In the present study, the aerodynamic stability of the ducted fan was studied with a mo...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Isfahan University of Technology
2020-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=51553&issue_ID=1005 |
| _version_ | 1828359186881183744 |
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| author | Y. Jin Y. Fu Y. Qian Y. Zhang |
| author_facet | Y. Jin Y. Fu Y. Qian Y. Zhang |
| author_sort | Y. Jin |
| collection | DOAJ |
| description | Ducted fans are widely used in unmanned aerial vehicles due to their high propulsive efficiency and safety. The aerodynamics are complex within the vicinity of the ground, including take-off, landing and hovering. In the present study, the aerodynamic stability of the ducted fan was studied with a modified Moore-Greitzer model to estimate and analyse the stability in ground effect. The model was validated and compared with three-dimensional unsteady simulations. The results indicated that the rotating stall occurred for the ducted fan in ground effect. The model results can be used to guide the design and control of the vehicles, to ensure the stability and safety of both the ducted fan and vehicles. |
| first_indexed | 2024-04-14T03:39:09Z |
| format | Article |
| id | doaj.art-f891e8ebdb464bb487eee98b51c421f2 |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-04-14T03:39:09Z |
| publishDate | 2020-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-f891e8ebdb464bb487eee98b51c421f22022-12-22T02:14:38ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722020-01-01132693701.A Moore-Greitzer Model for Ducted Fans in Ground EffectY. Jin0Y. Fu1Y. Qian2Y. Zhang3State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, ChinaState Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, ChinaState Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, ChinaState Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, ChinaDucted fans are widely used in unmanned aerial vehicles due to their high propulsive efficiency and safety. The aerodynamics are complex within the vicinity of the ground, including take-off, landing and hovering. In the present study, the aerodynamic stability of the ducted fan was studied with a modified Moore-Greitzer model to estimate and analyse the stability in ground effect. The model was validated and compared with three-dimensional unsteady simulations. The results indicated that the rotating stall occurred for the ducted fan in ground effect. The model results can be used to guide the design and control of the vehicles, to ensure the stability and safety of both the ducted fan and vehicles.http://jafmonline.net/JournalArchive/download?file_ID=51553&issue_ID=1005ducted fan; ground effect; stability model; unsteady simulation. |
| spellingShingle | Y. Jin Y. Fu Y. Qian Y. Zhang A Moore-Greitzer Model for Ducted Fans in Ground Effect Journal of Applied Fluid Mechanics ducted fan; ground effect; stability model; unsteady simulation. |
| title | A Moore-Greitzer Model for Ducted Fans in Ground Effect |
| title_full | A Moore-Greitzer Model for Ducted Fans in Ground Effect |
| title_fullStr | A Moore-Greitzer Model for Ducted Fans in Ground Effect |
| title_full_unstemmed | A Moore-Greitzer Model for Ducted Fans in Ground Effect |
| title_short | A Moore-Greitzer Model for Ducted Fans in Ground Effect |
| title_sort | moore greitzer model for ducted fans in ground effect |
| topic | ducted fan; ground effect; stability model; unsteady simulation. |
| url | http://jafmonline.net/JournalArchive/download?file_ID=51553&issue_ID=1005 |
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