| Autor: |
Hiroki Takase, Tetsuhiro Tsukiji |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Lecture Notes in Computational Vision and Biomechanics ISBN: 9783030431945 |
| DOI: |
10.1007/978-3-030-43195-2_47 |
| Popis: |
It is known generally that nocturnal owls fly quietly with low flight sound compared with other birds. The nocturnal owls have serrated feathers of the shape of fine saw at the leading edge of the feather. It is called serrations. It is a unique feather which cannot be seen with other birds and the serrations seem to have the effect to reduce the flight sound. The effect is called the silencing effect. Therefore, it is interesting to investigate the effect of the serrations on the flow properties around the feather and the acoustic effect. From those background, the present research is focused on the investigation of the influence of the serrations on the flow properties such as the velocity distribution, the vorticity distribution and the acoustic effect by analyzing the flow field around the feathers using CFD technique. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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