DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Chang, Keun-Shik | - |
dc.contributor.advisor | Park, Chul | - |
dc.contributor.advisor | 장근식 | - |
dc.contributor.advisor | 박철 | - |
dc.contributor.author | Lee, Eun-Seok | - |
dc.contributor.author | 이은석 | - |
dc.date.accessioned | 2011-12-12T07:01:22Z | - |
dc.date.available | 2011-12-12T07:01:22Z | - |
dc.date.issued | 2007 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=263546&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/26349 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 항공우주공학전공, 2007.2, [ vii, 75 p. ] | - |
dc.description.abstract | The 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.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | shock wave | - |
dc.subject | spectroscopy | - |
dc.subject | radiation | - |
dc.subject | 화성대기진입 | - |
dc.subject | 비평형 | - |
dc.subject | 충격파 | - |
dc.subject | 분광기 | - |
dc.subject | 복사 | - |
dc.subject | Mars entry | - |
dc.subject | nonequilibrium | - |
dc.title | Experimental and numerical investigation of mars-probe thermal radiation environment using a hydrogen-driven shock tube | - |
dc.title.alternative | 수소 고압부를 가진 충격관을 이용한 화성탐사체 열복사환경의 실험 및 수치적 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 263546/325007 | - |
dc.description.department | 한국과학기술원 : 항공우주공학전공, | - |
dc.identifier.uid | 020025227 | - |
dc.contributor.localauthor | Chang, Keun-Shik | - |
dc.contributor.localauthor | Park, Chul | - |
dc.contributor.localauthor | 장근식 | - |
dc.contributor.localauthor | 박철 | - |
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