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- Yokoyama Hiroshi
- Toyohashi University of Technology
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- Nagai Hiroyuki
- Toyohashi University of Technology
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- Iida Akiyoshi
- Toyohashi University of Technology
Bibliographic Information
- Other Title
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- 1016 翼列形状から発生する空力音響共鳴音(OS10-4 流体関連振動・騒音,オーガナイズドセッション)
Abstract
The purpose of this research is to clarify the generation condition of aeroacoustic resonance noise radiated from a cascade of flat blades. Resonance frequencies and the sound pressure levels were measured in a low noise wind tunnel. The results showed the strong tonal noise generated when the shed frequency of wake vortex was equal to the acoustic resonance frequency of the flat-plate. Moreover, an empirical model for the estimation of the open-end correction of the resonance frequency was suggested. Also, we clarified the effects of the offset length between the blades on the range of velocity for the occurrence of the 2nd peak of aeroacoustic resonance noise and the sound pressure level of the 2nd peak.
Journal
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- The Proceedings of the Fluids engineering conference
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The Proceedings of the Fluids engineering conference 2010 (0), 291-292, 2010
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390282680859301376
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- NII Article ID
- 110008739550
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- ISSN
- 24242896
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed