Slat Noise Source Modeling of Multi-element Airfoil in High-lift Configuration
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hwang, Seung Tae | - |
dc.contributor.author | Han, Chang Kyun | - |
dc.contributor.author | Im, Yong Taek | - |
dc.contributor.author | Kim, Jong Rok | - |
dc.contributor.author | Bae, Youngmin | - |
dc.contributor.author | Moon, Young J. | - |
dc.date.accessioned | 2021-09-03T05:30:06Z | - |
dc.date.available | 2021-09-03T05:30:06Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-06 | - |
dc.identifier.issn | 2093-274X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/83252 | - |
dc.description.abstract | We investigate the slat noise generation mechanism by using large-eddy simulation (LES) and simple source modeling based on linearized Euler equations. An incompressible LES of an MD 30P30N three-element airfoil in the high-lift configuration is conducted at Re-c = 1.7x10(6). Using the total derivative of the hydrodynamic pressure (DP/Dt) acquired from the incompressible LES, representative noise sources in the slat cove region are characterized in terms of simple sources such as frequency-specific monopoles and dipoles. Acoustic radiation around the 30P30N multi-element airfoil is effectively computed using the Brinkman penalization method incorporated with the linearized Euler equation. The directivity pattern of p'(rms) at r = 20c(slat) in the multiple sources is closely compared to that obtained by the application of the LES/Ffowcs-Williams and Hawking's methods to the entire flow field. The power spectrum of p' at theta = 290 degrees is in good agreement with the data reported in BANC-III, especially the broadband part of the spectrum with a decaying slope proportional to f(-3) | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN SOC AERONAUTICAL & SPACE SCIENCES | - |
dc.subject | PREDICTION | - |
dc.subject | BOUNDARIES | - |
dc.subject | SCHEMES | - |
dc.subject | FLOWS | - |
dc.subject | LAYER | - |
dc.title | Slat Noise Source Modeling of Multi-element Airfoil in High-lift Configuration | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Moon, Young J. | - |
dc.identifier.doi | 10.5139/IJASS.2017.18.2.197 | - |
dc.identifier.scopusid | 2-s2.0-85031821853 | - |
dc.identifier.wosid | 000407408700003 | - |
dc.identifier.bibliographicCitation | INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES, v.18, no.2, pp.197 - 205 | - |
dc.relation.isPartOf | INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES | - |
dc.citation.title | INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES | - |
dc.citation.volume | 18 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 197 | - |
dc.citation.endPage | 205 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART002239639 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Aerospace | - |
dc.subject.keywordPlus | PREDICTION | - |
dc.subject.keywordPlus | BOUNDARIES | - |
dc.subject.keywordPlus | SCHEMES | - |
dc.subject.keywordPlus | FLOWS | - |
dc.subject.keywordPlus | LAYER | - |
dc.subject.keywordAuthor | Slat noise | - |
dc.subject.keywordAuthor | 30P30N multi-element airfoil | - |
dc.subject.keywordAuthor | Computational aeroacoustics | - |
dc.subject.keywordAuthor | Simple source modeling | - |
dc.subject.keywordAuthor | Longitudinal vortex | - |
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