{"created":"2023-06-20T14:38:48.630290+00:00","id":5419,"links":{},"metadata":{"_buckets":{"deposit":"dbbf9350-382f-4afa-8789-8bf7b1063fdc"},"_deposit":{"created_by":1,"id":"5419","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"5419"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00005419","sets":["1398:1530:1541","1543:1874:1885","1887:1891","9:789:956:964"]},"author_link":["26247","26248","26249","26246"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Assessment of translational-rotational nonequilibrium of rarefied hydrogen plasma flow"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-02-27","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"JAXA-SP-08-009","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料: 第40回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2008論文集"},{"bibliographic_title":"JAXA Special Publication: Proceedings fo 40th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2008","bibliographic_titleLang":"en"}]}]},"item_5_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第40回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2008. 会期: 2008年6月12日-6月13日. 会場: 東北大学片平キャンパス","subitem_description_type":"Other"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"In the present work, we focused on translational-rotational nonequilibrium in rarefied hydrogen plasma flow. Hydrogen molecules are known as a gas that exhibits strong nonequilibrium. The rotational collision number of hydrogen molecules is reportedly around 200 - 400 up to 2000 K, whereas the rotational collision number of other molecules such as nitrogen and oxygen molecules is less than 10. Therefore, in the case of hydrogen molecules, care must be taken before assuming equilibrium between translational and rotational modes in the framework of the two-temperature model. It is important to establish a diagnostic method for the translational-rotational relaxation of hydrogen molecules. We presented the method to determine translational and rotational temperatures by emission spectroscopy. The translational temperature was determined by Balmer H(sub beta) line profile fitting, taking into account instrumental broadening, Doppler broadening, and spin-orbit coupling. Other effects such as Stark effect and Zeeman effect were not dominant in our experimental conditions, and were neglected. The rotational temperature was determined by line intensity fitting of the Fulcher-alpha band of molecular hydrogen. Then, we applied this method to our plasma wind tunnel and investigated the translational-rotational nonequilibrium in the hydrogen plasma flow. We conducted experiments for two conditions. The results revealed that translational-rotational equilibrium was obtained only in the case of higher stagnation pressure. In the other experimental condition, the translational-rotational nonequilibrium was observed. The results were reasonably explained by comparing the flow characteristic time with the translational-rotational relaxation time reported in the literature.","subitem_description_type":"Other"}]},"item_5_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0064303017","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-SP-08-009","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_5_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-113X","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11984031","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学大学院新領域創成科学研究科"},{"subitem_text_value":"東京大学大学院新領域創成科学研究科"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Graduate School of Frontier Science, University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Graduate School of Frontier Science, University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"高間, 良樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鈴木, 宏二郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takama, Yoshiki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Suzuki, Kojiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-16"}],"displaytype":"detail","filename":"64303017.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"64303017.pdf","url":"https://jaxa.repo.nii.ac.jp/record/5419/files/64303017.pdf"},"version_id":"c2affe59-3315-4d9c-89c0-bbb0866672c6"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"希薄水素プラズマ流の並進-回転非平衡性の検証","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"希薄水素プラズマ流の並進-回転非平衡性の検証"}]},"item_type_id":"5","owner":"1","path":["964","1541","1885","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"5419","relation_version_is_last":true,"title":["希薄水素プラズマ流の並進-回転非平衡性の検証"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T08:15:22.130283+00:00"}