Aerodynamic sound generation of flapping wing
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bae, Youngmin | - |
dc.contributor.author | Moon, Young J. | - |
dc.date.accessioned | 2021-09-09T07:02:34Z | - |
dc.date.available | 2021-09-09T07:02:34Z | - |
dc.date.created | 2021-06-10 | - |
dc.date.issued | 2008-07 | - |
dc.identifier.issn | 0001-4966 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/123295 | - |
dc.description.abstract | The unsteady flow and acoustic characteristics of the flapping wing are numerically investigated for a two-dimensional model of Bombus terrestris bumblebee at hovering and forward flight conditions. The Reynolds number Re, based on the maximum translational velocity of the wing and the chord length, is 8800 and the Mach number M is 0.0485. The computational results show that the flapping wing sound is generated by two different sound generation mechanisms. A primary dipole tone is generated at wing beat frequency by the transverse motion of the wing, while other higher frequency dipole tones are produced via vortex edge scattering during a tangential motion. It is also found that the primary tone is directional because of the torsional angle in wing motion. These features are only distinct for hovering, while in forward flight condition, the wing-vortex interaction becomes more prominent due to the free stream effect. Thereby, the sound pressure level spectrum is more broadband at higher frequencies and the frequency compositions become similar in all directions. (c) 2008 Acoustical Society of America. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ACOUSTICAL SOC AMER AMER INST PHYSICS | - |
dc.subject | PERTURBED COMPRESSIBLE EQUATIONS | - |
dc.subject | POWER REQUIREMENTS | - |
dc.subject | INSECT FLIGHT | - |
dc.subject | KINEMATICS | - |
dc.subject | MECHANICS | - |
dc.subject | FLY | - |
dc.subject | BUMBLEBEES | - |
dc.subject | DROSOPHILA | - |
dc.subject | ROTATION | - |
dc.subject | SCHEMES | - |
dc.title | Aerodynamic sound generation of flapping wing | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Moon, Young J. | - |
dc.identifier.doi | 10.1121/1.2932340 | - |
dc.identifier.scopusid | 2-s2.0-47649108919 | - |
dc.identifier.wosid | 000257768000008 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, v.124, no.1, pp.72 - 81 | - |
dc.relation.isPartOf | JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | - |
dc.citation.title | JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | - |
dc.citation.volume | 124 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 72 | - |
dc.citation.endPage | 81 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Acoustics | - |
dc.relation.journalResearchArea | Audiology & Speech-Language Pathology | - |
dc.relation.journalWebOfScienceCategory | Acoustics | - |
dc.relation.journalWebOfScienceCategory | Audiology & Speech-Language Pathology | - |
dc.subject.keywordPlus | KINEMATICS | - |
dc.subject.keywordPlus | MECHANICS | - |
dc.subject.keywordPlus | FLY | - |
dc.subject.keywordPlus | BUMBLEBEES | - |
dc.subject.keywordPlus | DROSOPHILA | - |
dc.subject.keywordPlus | ROTATION | - |
dc.subject.keywordPlus | SCHEMES | - |
dc.subject.keywordPlus | PERTURBED COMPRESSIBLE EQUATIONS | - |
dc.subject.keywordPlus | POWER REQUIREMENTS | - |
dc.subject.keywordPlus | INSECT FLIGHT | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.