{"created":"2023-06-20T15:07:59.134778+00:00","id":37367,"links":{},"metadata":{"_buckets":{"deposit":"a22a2c30-d449-4de0-83f4-fed6cd3cb04a"},"_deposit":{"created_by":1,"id":"37367","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"37367"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00037367","sets":["1887:1891","1896:1898:1913:1915"]},"author_link":["480374","480372","480371","480373","480370","480375"],"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"超音速パルスジェットの数値解析"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1999-02","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"335","bibliographicPageStart":"331","bibliographicVolumeNumber":"41","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所特別資料"},{"bibliographic_title":"Special Publication of National Aerospace Laboratory","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":"航空宇宙技術研究所 24-26 Jun. 1998 東京 日本","subitem_description_type":"Other"}]},"item_5_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"National Aerospace Laboratory 24-26 Jun. 1998 Tokyo Japan","subitem_description_type":"Other"}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"不安定な円形ジェットを数値的に扱う。円形パルスジェットの時間的変化を広範囲なジェット強度について系統的に調べる。ジェットの進展、特に、中間段階でのマッハディスクおよび後の段階での衝撃波セル構造の形成過程に焦点を置く。不安定マッハディスクが全ての不足膨張音速ジェットで少なくとも一時的には実現されるが、弱いジェットではそれらは時間と共に衰退することが示された。ノズル口近傍に生成した渦輪は衝撃波セル構造の形成に重要な役割を果たす。特に渦輪と強い二次衝撃に関係するマッハディスクとの相互作用は最初の衝撃波セルの形成過程に非常に影響する。最初のセル構造の形成過程については幾つかの異なる種類が見いだされた。また、マッハディスクの外縁にある3点から出ている滑り面に沿ったケルビン・ヘルムホルツ不安定性が2番目の大きな渦を生成する原因であり、この渦が最初の渦を巻き込むことが明らかにされている。この結果、噴出気体とそのジェットを取り巻く気体が大いに混合される。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Unsteady circular jets are treated numerically. The time evolution of circular pulse jets is investigated systematically in a wade range of jet strength. Focus is placed on the jet evolution, in particular, the formation process of Mach disks in the middle stage and of shock cell structures in the later stage. It is shown that unsteady Mach disks are realized at least temporarily for all sonic underexpanded jets, but they decay with time for weak jets. The vortex ring produced near the nozzle lip plays an important role in the formation of the shock cell structure. Especially interactions between the vortex ring and Mach disk connected with a strong second shock affect remarkably the construction process of the first shock cell. A few types of different construction processes of the first cell structure are found. It is also made clear that the Kelvin-Helmholtz instability along slip surfaces originating from the triple point at the outer edge of the Mach disk is responsible for the generation of large second vortices which enroll the first vortex. This results in strong mixing of the jetting gas and the gas around the jet.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0001958053","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: NAL SP-41","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"航空宇宙技術研究所"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"National Aerospace Laboratory (NAL)"}]},"item_5_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0289-260X","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":"AN10097345","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"京都大学 大学院"},{"subitem_text_value":"京都大学 大学院"},{"subitem_text_value":"金沢大学"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Kyoto University Graduate School"},{"subitem_text_language":"en","subitem_text_value":"Kyoto University Graduate School"},{"subitem_text_language":"en","subitem_text_value":"Kanazawa University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"石井, 隆次"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"梅田, 吉邦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"由比, 政年"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ishii, Ryuji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Umeda, Yoshikuni","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yuhi, Masatoshi","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":"2020-02-10"}],"displaytype":"detail","filename":"nalsp0041053.pdf","filesize":[{"value":"405.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"nalsp0041053.pdf","url":"https://jaxa.repo.nii.ac.jp/record/37367/files/nalsp0041053.pdf"},"version_id":"37ec36ce-d027-4432-9961-d5fa81985e64"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"パルスジェット","subitem_subject_scheme":"Other"},{"subitem_subject":"円形ジェット","subitem_subject_scheme":"Other"},{"subitem_subject":"数値解析","subitem_subject_scheme":"Other"},{"subitem_subject":"衝撃波セル","subitem_subject_scheme":"Other"},{"subitem_subject":"不足膨張音速ジェット","subitem_subject_scheme":"Other"},{"subitem_subject":"ノズル口","subitem_subject_scheme":"Other"},{"subitem_subject":"渦輪","subitem_subject_scheme":"Other"},{"subitem_subject":"マッハディスク","subitem_subject_scheme":"Other"},{"subitem_subject":"ケルビン・ヘルムホルツ不安定性","subitem_subject_scheme":"Other"},{"subitem_subject":"超音速ジェット","subitem_subject_scheme":"Other"},{"subitem_subject":"pulse jet","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"circular jet","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical analysis","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"shock cell","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"sonic underexpanded jet","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"nozzle lip","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"vortex ring","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Mach disk","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Kelvin Helmholtz instability","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"supersonic jet","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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":"Numerical analysis of supersonic pulse jets","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Numerical analysis of supersonic pulse jets","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["1891","1915"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"37367","relation_version_is_last":true,"title":["Numerical analysis of supersonic pulse jets"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:20:45.983742+00:00"}