Characteristics of aerodynamic noise radiated from a forward facing step with an incoming turbulent boundary layer Article Swipe
YOU?
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· 2022
· Open Access
·
· DOI: https://doi.org/10.1299/jsmefed.2022.os12-06
In this study, aerodynamic noise generates from forward step flow with different flow velocities U0 and step heights H were measured to investigate the characteristics of high-frequency wind noise generated from the Forward-Facing Step. The flow velocity was set to 0~50 m/s and the step height to H = 15, 30 and 45 mm. The aerodynamic noise was converted into sound pressure spectra by FFT to investigate their characteristics. To investigate the influence of the boundary layer thickness δ and step height H on the shear layer of the step, correlation measurements were performed on the shear layer to estimate the vortex scale. The results show that the high-frequency aerodynamic noise has a characteristic peak that is independent of the flow velocity. It is also confirmed that vortex scales which are nondimensionalized by step height generated in the shear layer at H/δ = 2 and 3 is similar.
Related Topics
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1299/jsmefed.2022.os12-06
- OA Status
- diamond
- Related Works
- 10
- OpenAlex ID
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4377980673Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1299/jsmefed.2022.os12-06Digital Object Identifier
- Title
-
Characteristics of aerodynamic noise radiated from a forward facing step with an incoming turbulent boundary layerWork title
- Type
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articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-01-01Full publication date if available
- Authors
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Yoshihiro SHIRASU, Yasumasa Suzuki, Yuya MIKI, Chisachi KATOList of authors in order
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https://doi.org/10.1299/jsmefed.2022.os12-06Publisher landing page
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YesWhether a free full text is available
- OA status
-
diamondOpen access status per OpenAlex
- OA URL
-
https://doi.org/10.1299/jsmefed.2022.os12-06Direct OA link when available
- Concepts
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Aerodynamics, Boundary layer, Vortex, Noise (video), Acoustics, Boundary layer thickness, Turbulence, Flow (mathematics), Flow separation, Mechanics, Physics, Computer science, Artificial intelligence, Image (mathematics)Top concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
- Related works (count)
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10Other works algorithmically related by OpenAlex
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| cited_by_percentile_year | |
| countries_distinct_count | 1 |
| institutions_distinct_count | 4 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/7 |
| sustainable_development_goals[0].score | 0.7699999809265137 |
| sustainable_development_goals[0].display_name | Affordable and clean energy |
| citation_normalized_percentile.value | 0.08990366 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |