{"created":"2023-06-20T15:11:40.178775+00:00","id":41367,"links":{},"metadata":{"_buckets":{"deposit":"5885ba97-5ab2-4832-ba83-152070efea2d"},"_deposit":{"created_by":1,"id":"41367","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"41367"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00041367","sets":["1887:1893","1896:1898:1913:1915"]},"author_link":["489708","489709"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Instability waves appearing before separation"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2000-12","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"24","bibliographicPageStart":"23","bibliographicVolumeNumber":"47","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_3_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":"27-28 Sept. 1999 (25th). 27-28 Mar. 2000 (26th)","subitem_description_type":"Other"}]},"item_3_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":"27-28 Sept. 1999 (25th). 27-28 Mar. 2000 (26th)","subitem_description_type":"Other"}]},"item_3_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"翼のピッチング運動時の翼表面圧力変化を計測し、はく離の兆候を得るため解析した。他の信号から兆候信号を区別するには、はく離開始時間を正確に知ることが必要であるため、予測可能なはく離を作り出すのにピッチング翼を採用した。時間に対し指数関数的に増幅された正弦波ははく離の直前に出現することが分かった。この変動は変曲点型速度分布に基づく境界層の不安定性波動であると見なした。","subitem_description_type":"Abstract"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The surface pressure change during a pitching motion of an airfoil was measured, and was analyzed to obtain a precursor of separation. A pitching airfoil was adopted to produce a predictable separation, because it is necessary to know a precise time to start separation to distinguish the precursor from other signals. The sinusoidal wave amplified exponentially in time was found to appear just before separation. This fluctuation is regarded as an instability wave of boundary layer based on the velocity profile with an inflection point.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0028636007","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: NAL SP-47","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"航空宇宙技術研究所"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"National Aerospace Laboratory (NAL)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0289-260X","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":"AN10097345","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"北海道大学 大学院工学研究科"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Hokkaido University Graduate School of Engineering"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"望月, 修"}],"nameIdentifiers":[{"nameIdentifier":"489708","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mochizuki, Osamu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"489709","nameIdentifierScheme":"WEKO"}]}]},"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":"nalsp0047007.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"nalsp0047007.pdf","url":"https://jaxa.repo.nii.ac.jp/record/41367/files/nalsp0047007.pdf"},"version_id":"13a1569b-8a8e-4246-aab0-170e5158f93a"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"層流はく離","subitem_subject_scheme":"Other"},{"subitem_subject":"兆候信号","subitem_subject_scheme":"Other"},{"subitem_subject":"不安定性波動","subitem_subject_scheme":"Other"},{"subitem_subject":"境界層","subitem_subject_scheme":"Other"},{"subitem_subject":"表面圧力","subitem_subject_scheme":"Other"},{"subitem_subject":"速度分布","subitem_subject_scheme":"Other"},{"subitem_subject":"ピッチング翼","subitem_subject_scheme":"Other"},{"subitem_subject":"正弦波","subitem_subject_scheme":"Other"},{"subitem_subject":"変曲点","subitem_subject_scheme":"Other"},{"subitem_subject":"laminar separation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"precursor signal","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"instability wave","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"boundary layer","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"surface pressure","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"velocity profile","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"pitching airfoil","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"sinusoidal wave","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"inflection point","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":"はく離直前に現れる不安定波動","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"はく離直前に現れる不安定波動"}]},"item_type_id":"3","owner":"1","path":["1893","1915"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"41367","relation_version_is_last":true,"title":["はく離直前に現れる不安定波動"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:02:06.229621+00:00"}