| Item type |
テクニカルレポート / Technical Report(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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|
タイトル |
Spectral Characteristics of Arc-Heated Low Density Plasma Flows (II) Nitrogen Plasma |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
|
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_18gh |
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資源タイプ |
technical report |
| その他のタイトル |
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その他のタイトル |
低密度プラズマ流のスペクトル特性(Ⅱ)窒素プラズマ |
| 著者 |
渡辺, 泰夫
平林, 則明
WATANABE, Yasuo
HIRABAYASHI, Noriaki
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| 著者所属 |
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航空宇宙技術研究所空気力学第一部 |
| 著者所属 |
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航空宇宙技術研究所空気力学第一部 |
| 著者所属(英) |
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|
en |
|
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First Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 著者所属(英) |
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en |
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First Aerodynamics Division, National Aerospace Laboratory(NAL) |
| 出版者 |
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出版者 |
航空宇宙技術研究所 |
| 出版者(英) |
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出版者 |
National Aerospace Laboratory(NAL) |
| 書誌情報 |
航空宇宙技術研究所報告
en : Technical Report of National Aerospace Laboratory TR-952
巻 952,
p. 15,
発行日 1987-11
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| 抄録(英) |
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内容記述タイプ |
Other |
|
内容記述 |
Emissions from the nitrogen plasma flows produced in an arc-heated low-density wind tunnel were analyzed spectroscopically. The prominent emitters were identified as N+2 first negative, N2 second positive and N2 first positive systems. By measuring the rotational and vibrational intensity distributions in some bands of the N+2 first negative system, temperatures in the plenum chamber were determined to be in the range between 5,500 and 6,900 K. Intensity distributions in the N2 first positive system seemed to be consistent with these temperatures. Molecular state populations of N2 and N+2 showed deviations from those expected from LTE relations. In the low density test section flows, vibrational temperatures determined by the N+2 first negative system bands showed large difference from rotational temperatures. The N2 first positive system also showed non-equilibrium intensity distribution, which resembled those found in Lewis-Rayleigh afterglows. The possible excitation-emission mechanisms of these band-systems in the low density plasma flows are discussed. |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0389-4010 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: NALTR0952000 |
| レポート番号 |
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|
内容記述タイプ |
Other |
|
内容記述 |
レポート番号: NAL TR-952 |