경계층 흡입이 S-Duct의 유동 왜곡에 미치는 영향성 연구
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Baeg, Seungyong | - |
dc.contributor.author | Lee, Jihyeong | - |
dc.contributor.author | Cho, Jinsoo | - |
dc.date.accessioned | 2021-08-02T12:28:32Z | - |
dc.date.available | 2021-08-02T12:28:32Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2019-01 | - |
dc.identifier.issn | 1225-1348 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/15142 | - |
dc.description.abstract | 항공기의 Intake는 공간적 제약 또는 생존성 확보의 이유로 S형태의 곡률을 갖는 덕트를 가진다. 그러나 덕트의 곡률은 2차유동과 유동박리의 발생을 야기하며 불균일한 압력분포 생성의 원인이 된다. 본 연구에서는 RAE M 2129 S-Duct의 형상에 보조 Duct를 적용하여 경계층 흡입을 수행하였다. 경계층 흡입의 위치와 각도를 설계변수로 설정하였으며, 흡입면에서 동일 유량을 흡입하는 조건을 부여하였다. S-Duct의 전산해석 타당성을 검증하기 위하여 Port Side와 Starboard Side의 무차원 압력 분포를 ARA 실험값, 전산해석 값과 각각 비교하여 확인하였다. 본 연구에서는 유동 왜곡을 판단하는 공기역학적 성능인자로 유동 왜곡 계수를 사용 하였으며, 경계층 흡입에 의한 유동박리, 와류, 유량 분포 및 압력 분포를 비교 분석 하였다. 그 결과 경계층 흡입 적용 이전과 비교하여 최대 26.14%의 유동 왜곡계수 저감 효과를 확인하였다. An intake of Aircraft becomes S-shaped geometry due to spatial limitation or procuring survivability. But curvature of the S-shaped geometry makes secondary flow or flow separation which is the cause of non-uniform pressure distribution. In this study, boundary layer suction is applied to RAE M 2129 S-Duct by attaching sub duct. Design variable is suction location and angle. A mass flow rate drawn out by suction at the sub duct outlet is constant over every model. A grid dependency test was conducted to verify validity of computation. The comparison among the CFD ( Computation Fluid Dynamics), ARA experimental result, and ARA computation result of non-dimensional pressure distribution on the Port side and Starboard Side confirmed the validity of CFD. In this study, Distortion Coefficient was used for evaluating aerodynamic performance of S-Duct. The analysis, which was about flow separation, vortex, mass flow rate distribution, and pressure distribution were also investigated. Maximum 26.14% reduction in Distortion Coefficient was verified. | - |
dc.language | 한국어 | - |
dc.language.iso | ko | - |
dc.publisher | KOREAN SOC AERONAUTICAL & SPACE SCIENCES | - |
dc.title | 경계층 흡입이 S-Duct의 유동 왜곡에 미치는 영향성 연구 | - |
dc.title.alternative | Effect on Flow Distortion of S-Duct by Boundary Layer Suction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Cho, Jinsoo | - |
dc.identifier.doi | 10.5139/JKSAS.2019.47.1.17 | - |
dc.identifier.scopusid | 2-s2.0-85150262641 | - |
dc.identifier.wosid | 000460971800003 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE KOREAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, v.47, no.1, pp.17 - 25 | - |
dc.relation.isPartOf | JOURNAL OF THE KOREAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES | - |
dc.citation.title | JOURNAL OF THE KOREAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES | - |
dc.citation.volume | 47 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 17 | - |
dc.citation.endPage | 25 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART002429001 | - |
dc.description.journalClass | 2 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Aerospace | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordAuthor | Boundary Layer Suction | - |
dc.subject.keywordAuthor | Flow Distortion | - |
dc.subject.keywordAuthor | Flow Separation | - |
dc.subject.keywordAuthor | Pressure Recovery | - |
dc.subject.keywordAuthor | S-Duct | - |
dc.subject.keywordAuthor | Sub Duct | - |
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