Aeroacoustic Simulation of an Owl Wing Cross-section Using Computational Fluid Dynamics
In this study, we aim to investigate the low noise flights of owls in terms of aerodynamics. The flow around cross-section of an owl wing, which is known for its nearly silent flight, is numerically analyzed using Computational Fluid Dynamics (CFD). The analysis are based on the parameters of angle...
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Sakarya University
2022-04-01
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| Series: | Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi |
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| Online Access: | https://dergipark.org.tr/tr/download/article-file/1871794 |
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| author | Ferit Yıldız Sedat Tokgoz |
| author_facet | Ferit Yıldız Sedat Tokgoz |
| author_sort | Ferit Yıldız |
| collection | DOAJ |
| description | In this study, we aim to investigate the low noise flights of owls in terms of aerodynamics. The flow around cross-section of an owl wing, which is known for its nearly silent flight, is numerically analyzed using Computational Fluid Dynamics (CFD). The analysis are based on the parameters of angle of attack and the flight speed. The aerodynamic effects on the acoustic is compared in terms of vorticity and sound pressure level, where the frequency interval for the acoustic data is set to 0-7500Hz. It was seen that the vortical organisations around the airfoils are closely related to the acoustic results. The results show that the increase in both velocity and angle of attack affect the vorticity, thus lead to a rise in sound pressure level. It can be stated that the owl airfoil shape ensures a relatively silent flight. |
| format | Article |
| id | doaj-art-da8badbfdc5c4143905687985f9bbdaf |
| institution | OA Journals |
| issn | 2147-835X |
| language | English |
| publishDate | 2022-04-01 |
| publisher | Sakarya University |
| record_format | Article |
| series | Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi |
| spelling | doaj-art-da8badbfdc5c4143905687985f9bbdaf2025-08-20T02:31:52ZengSakarya UniversitySakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi2147-835X2022-04-0126237538710.16984/saufenbilder.96870128Aeroacoustic Simulation of an Owl Wing Cross-section Using Computational Fluid DynamicsFerit Yıldız0https://orcid.org/0000-0002-7450-846XSedat Tokgoz1https://orcid.org/0000-0002-0836-2861GEBZE TECHNICAL UNIVERSITYGEBZE TECHNICAL UNIVERSITYIn this study, we aim to investigate the low noise flights of owls in terms of aerodynamics. The flow around cross-section of an owl wing, which is known for its nearly silent flight, is numerically analyzed using Computational Fluid Dynamics (CFD). The analysis are based on the parameters of angle of attack and the flight speed. The aerodynamic effects on the acoustic is compared in terms of vorticity and sound pressure level, where the frequency interval for the acoustic data is set to 0-7500Hz. It was seen that the vortical organisations around the airfoils are closely related to the acoustic results. The results show that the increase in both velocity and angle of attack affect the vorticity, thus lead to a rise in sound pressure level. It can be stated that the owl airfoil shape ensures a relatively silent flight.https://dergipark.org.tr/tr/download/article-file/1871794aerodynamicsairfoilbiological flowcomputational fluid dynamics |
| spellingShingle | Ferit Yıldız Sedat Tokgoz Aeroacoustic Simulation of an Owl Wing Cross-section Using Computational Fluid Dynamics Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi aerodynamics airfoil biological flow computational fluid dynamics |
| title | Aeroacoustic Simulation of an Owl Wing Cross-section Using Computational Fluid Dynamics |
| title_full | Aeroacoustic Simulation of an Owl Wing Cross-section Using Computational Fluid Dynamics |
| title_fullStr | Aeroacoustic Simulation of an Owl Wing Cross-section Using Computational Fluid Dynamics |
| title_full_unstemmed | Aeroacoustic Simulation of an Owl Wing Cross-section Using Computational Fluid Dynamics |
| title_short | Aeroacoustic Simulation of an Owl Wing Cross-section Using Computational Fluid Dynamics |
| title_sort | aeroacoustic simulation of an owl wing cross section using computational fluid dynamics |
| topic | aerodynamics airfoil biological flow computational fluid dynamics |
| url | https://dergipark.org.tr/tr/download/article-file/1871794 |
| work_keys_str_mv | AT ferityıldız aeroacousticsimulationofanowlwingcrosssectionusingcomputationalfluiddynamics AT sedattokgoz aeroacousticsimulationofanowlwingcrosssectionusingcomputationalfluiddynamics |