Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023941471> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W2023941471 endingPage "19" @default.
- W2023941471 startingPage "10" @default.
- W2023941471 abstract "항공기 추진 시스템의 IR 피탐지성은 노즐형상 및 대기조건에 큰 영향을 받게 된다. 그 영향성을 분석하기 위해 대표적 스텔스 무인 항공기와 그 추진 시스템의 형상변형 수축노즐을 고려하였다. 먼저 압축성 CFD 코드를 이용하여 IR 신호 계산에 필요한 열유동장 및 노즐표면 온도 정보를 산출하였다. 플룸 IR 신호를 계산해 본 결과 축방향 신호수준은 상당히 감소하는 반면, 노즐의 좌우 측면에서는 노즐의 가로세로비 증가로 인해 플룸이 좌우로 확장되어 특정 가로세로비에서 상대적으로 증가된 플룸 IR 신호가 발생함을 확인하였다. 다음으로 LOWTRAN 7 코드와 연계하여 계절 및 관측거리 변화에 따른 대기 투과율을 분석하고 그 결과를 바탕으로 대기효과가 고려된 플룸 IR 신호를 계산하였다. 계산결과 계절이 여름일 경우와 비교적 근접의 관측거리에서 이산화탄소 밴드에서 IR 신호가 현저히 감소하는 것을 확인하였다. Nozzle configurations and atmospheric conditions play a significant role in the infrared signature level of aircraft propulsion system. Various convergent nozzles of an unmanned aircraft under different atmospheric conditions are considered. An analysis of thermal flow field and nozzle surface temperature distribution is conducted using a compressible CFD code. It is shown that the IR level in rear direction is considerably reduced in deformed nozzles, whereas the IR level in adjacent azimuth angles is increased in aspect ratios around 6 due to the plume spreading effect caused by high aspect ratio of nozzles. In addition, an analysis of atmospheric transmissivity for various seasons and observation distance is conducted using the LOWTRAN 7 code and subsequently plume IR signature is calculated by considering atmospheric effects. It is shown that the IR signature is reduced significantly in summer season and near the band of carbon dioxide in case of relatively close distance." @default.
- W2023941471 created "2016-06-24" @default.
- W2023941471 creator A5032839103 @default.
- W2023941471 creator A5061791780 @default.
- W2023941471 creator A5069056881 @default.
- W2023941471 creator A5070893605 @default.
- W2023941471 date "2014-01-01" @default.
- W2023941471 modified "2023-09-29" @default.
- W2023941471 title "Investigation of Aircraft Plume IR Signature for Various Nozzle Configurations and Atmospheric Conditions" @default.
- W2023941471 cites W1583904301 @default.
- W2023941471 cites W1972051792 @default.
- W2023941471 cites W1991117771 @default.
- W2023941471 cites W2020996230 @default.
- W2023941471 cites W2023361252 @default.
- W2023941471 cites W2056989467 @default.
- W2023941471 cites W2077699764 @default.
- W2023941471 doi "https://doi.org/10.5139/jksas.2014.42.1.10" @default.
- W2023941471 hasPublicationYear "2014" @default.
- W2023941471 type Work @default.
- W2023941471 sameAs 2023941471 @default.
- W2023941471 citedByCount "3" @default.
- W2023941471 countsByYear W20239414712014 @default.
- W2023941471 countsByYear W20239414712015 @default.
- W2023941471 countsByYear W20239414712016 @default.
- W2023941471 crossrefType "journal-article" @default.
- W2023941471 hasAuthorship W2023941471A5032839103 @default.
- W2023941471 hasAuthorship W2023941471A5061791780 @default.
- W2023941471 hasAuthorship W2023941471A5069056881 @default.
- W2023941471 hasAuthorship W2023941471A5070893605 @default.
- W2023941471 hasBestOaLocation W20239414711 @default.
- W2023941471 hasConcept C107872376 @default.
- W2023941471 hasConcept C113196181 @default.
- W2023941471 hasConcept C121332964 @default.
- W2023941471 hasConcept C127413603 @default.
- W2023941471 hasConcept C146978453 @default.
- W2023941471 hasConcept C153294291 @default.
- W2023941471 hasConcept C184779094 @default.
- W2023941471 hasConcept C185592680 @default.
- W2023941471 hasConcept C2524010 @default.
- W2023941471 hasConcept C2775840915 @default.
- W2023941471 hasConcept C2779696439 @default.
- W2023941471 hasConcept C33923547 @default.
- W2023941471 hasConcept C56200935 @default.
- W2023941471 hasConceptScore W2023941471C107872376 @default.
- W2023941471 hasConceptScore W2023941471C113196181 @default.
- W2023941471 hasConceptScore W2023941471C121332964 @default.
- W2023941471 hasConceptScore W2023941471C127413603 @default.
- W2023941471 hasConceptScore W2023941471C146978453 @default.
- W2023941471 hasConceptScore W2023941471C153294291 @default.
- W2023941471 hasConceptScore W2023941471C184779094 @default.
- W2023941471 hasConceptScore W2023941471C185592680 @default.
- W2023941471 hasConceptScore W2023941471C2524010 @default.
- W2023941471 hasConceptScore W2023941471C2775840915 @default.
- W2023941471 hasConceptScore W2023941471C2779696439 @default.
- W2023941471 hasConceptScore W2023941471C33923547 @default.
- W2023941471 hasConceptScore W2023941471C56200935 @default.
- W2023941471 hasIssue "1" @default.
- W2023941471 hasLocation W20239414711 @default.
- W2023941471 hasOpenAccess W2023941471 @default.
- W2023941471 hasPrimaryLocation W20239414711 @default.
- W2023941471 hasRelatedWork W1969571992 @default.
- W2023941471 hasRelatedWork W1997227161 @default.
- W2023941471 hasRelatedWork W2000446877 @default.
- W2023941471 hasRelatedWork W2031694061 @default.
- W2023941471 hasRelatedWork W2062172296 @default.
- W2023941471 hasRelatedWork W2106102250 @default.
- W2023941471 hasRelatedWork W2353791265 @default.
- W2023941471 hasRelatedWork W2356692778 @default.
- W2023941471 hasRelatedWork W2367090479 @default.
- W2023941471 hasRelatedWork W1904311234 @default.
- W2023941471 hasRelatedWork W211483512 @default.
- W2023941471 hasVolume "42" @default.
- W2023941471 isParatext "false" @default.
- W2023941471 isRetracted "false" @default.
- W2023941471 magId "2023941471" @default.
- W2023941471 workType "article" @default.