Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s Wings
With the advent of various advanced materials, the idea of flying like birds has attracted considerable attention in recent years. In addition, aeroacoustics has become an important issue and is being widely studied. In this work, based on the shape of Owls’ wings, an attempt was made to improve the...
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2022-05-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | https://www.jafmonline.net/article_2063_fa935b08bb8520daa94af39cc507f36c.pdf |
| _version_ | 1811249466486816768 |
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| author | R. Harbi Monfared M. Taeibi Rahni M. Zareh G. Ahmadi S. Etemadi Haghighi |
| author_facet | R. Harbi Monfared M. Taeibi Rahni M. Zareh G. Ahmadi S. Etemadi Haghighi |
| author_sort | R. Harbi Monfared |
| collection | DOAJ |
| description | With the advent of various advanced materials, the idea of flying like birds has attracted considerable attention in recent years. In addition, aeroacoustics has become an important issue and is being widely studied. In this work, based on the shape of Owls’ wings, an attempt was made to improve the aeroacoustic and aerodynamic performances of conventional aircraft wings. For this purpose, wings with different elements, namely, square, triangular, and semicircular, on their top surface were examined. In addition, three different spatial distributions of the elements according to the Owl’s wings shape were considered. For incompressible airflow, aerodynamic and aeroacoustic parameters of wing with structured surfaces were investigated. Also, a wing with serrations was examined. The results indicate that wings with elements distributed starting from maximum section thickness and continuing up to the trailing edge are the most suitable case for both aerodynamic and aeroacoustic improvements. On the other hand, a two-sided serrated wing and a serrated wing in the trailing edge reduce the sound level significantly. In addition, the use of both elements and serrations delays wing stall and thus markedly increases the maximum lift coefficient. |
| first_indexed | 2024-04-12T15:46:59Z |
| format | Article |
| id | doaj.art-eabb2b830a994657a893fc03fde5aebd |
| institution | Directory Open Access Journal |
| issn | 1735-3572 1735-3645 |
| language | English |
| last_indexed | 2024-04-12T15:46:59Z |
| publishDate | 2022-05-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-eabb2b830a994657a893fc03fde5aebd2022-12-22T03:26:38ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35721735-36452022-05-011541243125310.47176/jafm.15.04.330912063Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s WingsR. Harbi Monfared0M. Taeibi Rahni1M. Zareh2G. Ahmadi3S. Etemadi Haghighi4Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranDepartment of Aerospace Engineering, Sharif University of Technology, Tehran, IranDepartment of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranDepartment of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY, United StatesDepartment of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranWith the advent of various advanced materials, the idea of flying like birds has attracted considerable attention in recent years. In addition, aeroacoustics has become an important issue and is being widely studied. In this work, based on the shape of Owls’ wings, an attempt was made to improve the aeroacoustic and aerodynamic performances of conventional aircraft wings. For this purpose, wings with different elements, namely, square, triangular, and semicircular, on their top surface were examined. In addition, three different spatial distributions of the elements according to the Owl’s wings shape were considered. For incompressible airflow, aerodynamic and aeroacoustic parameters of wing with structured surfaces were investigated. Also, a wing with serrations was examined. The results indicate that wings with elements distributed starting from maximum section thickness and continuing up to the trailing edge are the most suitable case for both aerodynamic and aeroacoustic improvements. On the other hand, a two-sided serrated wing and a serrated wing in the trailing edge reduce the sound level significantly. In addition, the use of both elements and serrations delays wing stall and thus markedly increases the maximum lift coefficient.https://www.jafmonline.net/article_2063_fa935b08bb8520daa94af39cc507f36c.pdfaeroacousticsaerodynamicsuavsowlwing with structured surfaces |
| spellingShingle | R. Harbi Monfared M. Taeibi Rahni M. Zareh G. Ahmadi S. Etemadi Haghighi Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s Wings Journal of Applied Fluid Mechanics aeroacoustics aerodynamics uavs owl wing with structured surfaces |
| title | Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s Wings |
| title_full | Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s Wings |
| title_fullStr | Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s Wings |
| title_full_unstemmed | Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s Wings |
| title_short | Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s Wings |
| title_sort | aerodynamic and aeroacoustic performance of a wing with structured surface inspired by owl s wings |
| topic | aeroacoustics aerodynamics uavs owl wing with structured surfaces |
| url | https://www.jafmonline.net/article_2063_fa935b08bb8520daa94af39cc507f36c.pdf |
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