Experimental and numerical investigation of mars-probe thermal radiation environment using a hydrogen-driven shock tube수소 고압부를 가진 충격관을 이용한 화성탐사체 열복사환경의 실험 및 수치적 연구

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dc.contributor.advisorChang, Keun-Shik-
dc.contributor.advisorPark, Chul-
dc.contributor.advisor장근식-
dc.contributor.advisor박철-
dc.contributor.authorLee, Eun-Seok-
dc.contributor.author이은석-
dc.date.accessioned2011-12-12T07:01:22Z-
dc.date.available2011-12-12T07:01:22Z-
dc.date.issued2007-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=263546&flag=dissertation-
dc.identifier.urihttp://hdl.handle.net/10203/26349-
dc.description학위논문(박사) - 한국과학기술원 : 항공우주공학전공, 2007.2, [ vii, 75 p. ]-
dc.description.abstractThe chemical process of CN formation in a CO-N2 mixture is studied through temporally-resolved intensity measurement of CN Violet radiation occurring in the reflected-shock region of a shock tube. A 78% CO-22% $N_2$ mixture is driven by cold hydrogen to a shock speed of up to 3.45 km/s, to produce a reflected-shock temperature corresponding to Martian entry flight of up to 6.4 km/s. Absolute calibration of spectrometer is performed using a standard lamp of radiance. A reaction model is constructed by combining four existing models and multiplying the $C_2$ dissociation rate by a factor of five. Spectral radiation from the shock layer ahead of a flat circular-disk model is measured along the stagnation line with the sodium-salicylate phosphor coated on the test window to measure the vacuum-UV radiation as well. The intensity of the chemiluminescence due to the radiative recombination of CO and O is stronger than that of the CN-violet band by an order of magnitude. The phosphorescent output reveals that the intensity of the CO4+ band is weaker than the existing numerical prediction by as much as a factor of 4.3.eng
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectshock wave-
dc.subjectspectroscopy-
dc.subjectradiation-
dc.subject화성대기진입-
dc.subject비평형-
dc.subject충격파-
dc.subject분광기-
dc.subject복사-
dc.subjectMars entry-
dc.subjectnonequilibrium-
dc.titleExperimental and numerical investigation of mars-probe thermal radiation environment using a hydrogen-driven shock tube-
dc.title.alternative수소 고압부를 가진 충격관을 이용한 화성탐사체 열복사환경의 실험 및 수치적 연구-
dc.typeThesis(Ph.D)-
dc.identifier.CNRN263546/325007 -
dc.description.department한국과학기술원 : 항공우주공학전공, -
dc.identifier.uid020025227-
dc.contributor.localauthorChang, Keun-Shik-
dc.contributor.localauthorPark, Chul-
dc.contributor.localauthor장근식-
dc.contributor.localauthor박철-
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