{"created":"2023-06-20T14:36:26.296632+00:00","id":2749,"links":{},"metadata":{"_buckets":{"deposit":"ff811ac3-7fdd-446f-b6ac-d6a2b41e7e96"},"_deposit":{"created_by":1,"id":"2749","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2749"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00002749","sets":["1887:1893","9:1090:1311:1331"]},"author_link":["8776","8775"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Empirical method of total pressure loss estimation of subsonic diffuser"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-06-30","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"JAXA-RM-04-002","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発資料"},{"bibliographic_title":"JAXA Research and Development Memorandum","bibliographic_titleLang":"en"}]}]},"item_3_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"超音速インテークの総圧損失の予測は、その空力設計および推進システム性能予測の観点から重要である。特に、その亜音速ディフューザ部の基本通路設計における初期の形状設定や総圧損失予測ではより簡便に効率的に総圧損失を予測する必要がある。しかし、亜音速ディフューザではその形状パラメタが多いことや剥離などの粘性の影響が支配的であることから、簡便な解析で総圧損失を予測することは難しい。本研究では超音速インテークの亜音速ディフューザの基本通路設計を効率的に行うことに必要な総圧損失の推算方法として、これまでの実験データベースからディフューザ形状パラメタ(開き角、入口アスペクト比およびダクトオフセット)および流入条件(流入境界層と流入マッハ数)の影響を整理し、亜音速ディフューザの総圧損失について代数式で表される簡便な推算式を作成し、実験データとの比較検証を行った。その結果、利用可能な実験データの試験条件の範囲において、形状パラメタおよび流入条件による総圧損失の違いについて概ね妥当な評価が本推算式で可能であることを示した。また、この推算式を用いて亜音速ディフューザの基本通路設計における形状パラメタの設定について考察した。","subitem_description_type":"Abstract"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"It is important to estimate the total pressure loss in order to design aerodynamically the flow passage of the supersonic air-intake and to predict propulsion system performance. Especially for the preliminary passage design and performance prediction for the supersonic air-intake, an easy and efficient method for the total pressure loss estimation in the subsonic diffuser is required, because it is difficult to analyze the subsonic diffuser flow due to the complexity of the diffuser configuration and the viscous flow, possibly with flow separation. In the present study, an empirical estimation method is developed based on the earlier experimental data, including the effects of diffuser configuration parameters (expansion angle, inlet aspect ratio and duct offset) and incoming flow condition (inlet Mach number and boundary layer). The total pressure loss estimated by the present method is in generally good agreement with the experimental data for a variety of subsonic diffuser configurations. The preliminary passage design of subsonic diffusers for the supersonic air-intake is also discussed in the present report, based on the present empirical estimation method.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0047676000","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RM-04-002","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-1121","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11983593","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構 総合技術研究本部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"村上, 哲"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Murakami, Akira","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":"2020-01-15"}],"displaytype":"detail","filename":"47676000.pdf","filesize":[{"value":"5.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"47676000.pdf","url":"https://jaxa.repo.nii.ac.jp/record/2749/files/47676000.pdf"},"version_id":"ebb29dee-9010-4e9f-a331-322e9862a27d"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"亜音速ディフューザ","subitem_subject_scheme":"Other"},{"subitem_subject":"空力特性","subitem_subject_scheme":"Other"},{"subitem_subject":"超音速インテーク","subitem_subject_scheme":"Other"},{"subitem_subject":"総圧損失","subitem_subject_scheme":"Other"},{"subitem_subject":"剥離流れ","subitem_subject_scheme":"Other"},{"subitem_subject":"空力設計","subitem_subject_scheme":"Other"},{"subitem_subject":"マッハ数","subitem_subject_scheme":"Other"},{"subitem_subject":"拡散損失","subitem_subject_scheme":"Other"},{"subitem_subject":"subsonic diffuser","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic characteristic","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"supersonic intake","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"total pressure loss","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"separated flow","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic design","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Mach number","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"diffusion loss","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"亜音速ディフューザの総圧損失の推算について","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"亜音速ディフューザの総圧損失の推算について"}]},"item_type_id":"3","owner":"1","path":["1331","1893"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"2749","relation_version_is_last":true,"title":["亜音速ディフューザの総圧損失の推算について"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T09:16:41.561512+00:00"}