• Title/Summary/Keyword: Korea Aerospace Research Institute

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DESIGN AND TESTS OF A NATURAL LAMINAR FLOW AIRFOIL

  • Lee, Yung-Gyo;Kim, Cheo-Lwan;Kwon, Ki-Jung;Cho, Tae-Hwan;Shim, Jae-Yeul;Kim, Eumg-Tae;Lee, Dae-Sung
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2008년도 12th Asian Congress of Fluid Mechanics
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    • pp.79.1-79.1
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    • 2008
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System Operation of the MSC

  • Kim, Young-Soo;Yong, Sang-Soon;Heo, Haeng-Pal;Kong, Jong-Pil;Kim, Young-Sun
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2002년도 한국우주과학회보 제11권2호
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    • pp.48.2-48
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    • 2002
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DEVELOPMENT OF THE KSR-III UV RADIOMETER

  • Hwang, Seung-Hyun;Kim, Jhoon;Lee, Seung-Hoon;Kim, Joon-Kyu;Chun, Young-Doo;Park, Jung-Joo
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2002년도 한국우주과학회보 제11권1호
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    • pp.61.1-61
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    • 2002
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Study on the Coverage by COMS OCI FOV

  • Kang C. H.;Seo S. B.;Lim H. S.;Park D. J.;Ahn S. I.;Koo I. H.;Hyun D. H.;Yang H. M.;Choi H. J.
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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    • pp.336-339
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    • 2004
  • Communication, Ocean and Meteorological Satellite (COMS) has been developed by Korean Aerospace Research Institute (KARI) since 2003. Ocean Color Imager (OCI) is the one of COMS payloads, which will monitor the marine environment around Korean peninsula routinely with the intermediate resolution. But considering COMS is to be located in the geostationary orbit, required geographical coverage is not positioned in the nadir direction of COMS but in specific location with horizontal and vertical offsets from the nadir. In this study, coverage by OCI Field Of View (FOV) is analyzed. First of all, OCI is modeled as the sensor which is a $2,500{\times}2,500$ sized 2-D CCD and the pixel resolution is about 500m. And then, OCI is simulated to be controlled to target the required coverage accurately. As a result of it, coverage by OCI FOV is determined. Finally, all coverages by OCI FOV are mapped.

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A Case Study in the Mars Landing Site Selection for Science Objects

  • Seo, Haingja;Kim, Eojin;Kim, Joo Hyeon;Lee, Joo Hee;Choi, Gi-Hyuk;Sim, Eun-Sup
    • Journal of Astronomy and Space Sciences
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    • 제29권4호
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    • pp.375-380
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    • 2012
  • It is a crucial matter to select a landing site for landers or rovers in planning the Mars exploration. The landing site must have not only a scientific value as a landing site, but also geographical features to lead a safe landing for Mars probes. In this regard, this study analyzed landing site of Mars probes and rovers in previous studies and discussed the adequacy of the landing site to scientific missions. Moreover, this study also examined domestic studies on the Mars. The frameworks of these studies will guide the selection of exploration sites and a landing site when sending Mars probe to the Mars through our own efforts. Additionally, this paper will be used as the preliminary data for selection of exploration site and a landing site.

7톤급 액체로켓엔진용 터보펌프 조립체 성능시험 (Performance Test of a 7 tonf Liquid Rocket Engine Turbopump)

  • 곽현덕;김대진;김진선;김진한;노준구;박편구;배준환;신주현;윤석환;이항기;전성민;정은환;최창호;홍순삼;김성룡;김승한;한영민
    • 한국추진공학회지
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    • 제19권2호
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    • pp.65-72
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    • 2015
  • 7톤급 액체로켓엔진용 터보펌프 개발 시제에 대한 조립체 성능시험이 수행되었다. LN2와 물이 적용된 상사매질 조립체 시험을 통해 터보펌프 단품 간 출력 매칭 및 조립체 레벨에서의 수력/공력 성능검증이 선행되었으며 LOX와 케로신의 실제 운용 환경의 실매질 시험에서는 터보펌프의 설계점, 탈설계점 성능 검증시험이 이루어졌다. 탈설계시험은 엔진의 운용시간을 적용하여 이루어졌으며 펌프의 흡입성능 검증을 병행하였다. 개발된 7톤급 액체로켓용 터보펌프는 엔진운용영역에서 유량, 양정, 흡입성능, 그리고 운용시간의 요구규격을 만족시키는 것으로 확인되었다.