{"created":"2023-06-20T15:07:45.432860+00:00","id":37122,"links":{},"metadata":{"_buckets":{"deposit":"2563d214-d782-4a90-900d-eafdcbf071bc"},"_deposit":{"created_by":1,"id":"37122","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"37122"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00037122","sets":["1887:1891","1896:1898:1913:1915"]},"author_link":["479010","479008","479011","479012","479006","479005","479009","479007"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"On the characteristic values of vortex structure determined by the invariant values of velocity gradient tensor"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997-12","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"132","bibliographicPageStart":"129","bibliographicVolumeNumber":"36","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 26-28 Mar. 1997 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 26-28 Mar. 1997 Tokyo Japan","subitem_description_type":"Other"}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"円柱後流中の渦列の渦構造を速度勾配テンソルF(p=trF,q=detF,ω:渦度)の不変量を使って研究した。水素気泡法を用いてレイノルズ数がRe=120とRe=500のときの不変量を測定した。特に零以外の渦度が分布している領域、また速度勾配テンソルの固有値が複雑である領域における渦構造に関連する流れの特徴を明らかにすることに注意を払った。q対pおよび4q-p(exp 2)対ω(exp 2)の散乱プロットは、層状後流(Re=120)中では安定したロッド状渦あるいは不安定なシート状渦である渦構造を同定するのに有用である。これらの値の点図表はまた円柱近傍の後流(Re=500)における乱流渦列の断片構造を説明するのに有用である。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Vortex structure of the vortex streets in the wake of a circular cylinder is studied with the use of invariants of velocity gradient tensor F (p = trF, q = detF, omega: vorticity). The invariants were measured using hydrogen bubble techniques for Reynolds number, Re = 120 and Re = 500. Particular interests are paid in clarifying the flow features concerning vortex structure in those regions where non-zero vorticity is distributed and in those regions where the eigenvalues of the velocity gradient tensor are complex. It is shown that the scatter plot of q vs. p and that of 4q-p(exp 2) vs. omega(exp 2) are useful for identifying the vortex structure which is a stable rod-like vortex or an unstable sheet-like vortex in the laminar wake (Re = 120). And the scatter plots of these values are also useful to elucidate the snap shot structure of turbulent vortex streets in the near wake of the cylinder (Re = 500).","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0001320032","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-36","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":"岐阜大学 工学部"},{"subitem_text_value":"岐阜大学 工学部"},{"subitem_text_value":"岐阜大学 工学部"},{"subitem_text_value":"岐阜大学 工学部"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Gifu University Faculty of Engineering"},{"subitem_text_language":"en","subitem_text_value":"Gifu University Faculty of Engineering"},{"subitem_text_language":"en","subitem_text_value":"Gifu University Faculty of Engineering"},{"subitem_text_language":"en","subitem_text_value":"Gifu University Faculty of Engineering"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"永田, 拓"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"成田, 達治"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"田中, 実一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"福島, 千晴"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nagata, Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Narita, Tatsuharu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanaka, Yoshikazu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Fukushima, Chiharu","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":"nalsp0036032.pdf","filesize":[{"value":"755.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"nalsp0036032.pdf","url":"https://jaxa.repo.nii.ac.jp/record/37122/files/nalsp0036032.pdf"},"version_id":"48937ccf-92fb-4e49-bfdd-c6c72b143075"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"速度勾配テンソル","subitem_subject_scheme":"Other"},{"subitem_subject":"渦構造","subitem_subject_scheme":"Other"},{"subitem_subject":"不変量","subitem_subject_scheme":"Other"},{"subitem_subject":"渦列","subitem_subject_scheme":"Other"},{"subitem_subject":"円柱後流","subitem_subject_scheme":"Other"},{"subitem_subject":"水素気泡法","subitem_subject_scheme":"Other"},{"subitem_subject":"ロッド状渦","subitem_subject_scheme":"Other"},{"subitem_subject":"シート状渦","subitem_subject_scheme":"Other"},{"subitem_subject":"剛体回転","subitem_subject_scheme":"Other"},{"subitem_subject":"レイノルズ数","subitem_subject_scheme":"Other"},{"subitem_subject":"velocity gradient tensor","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"vortex structure","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"invariant value","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"vortex street","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"circular cylinder wake","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"hydrogen bubble technique","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"rod like vortex","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"sheet like vortex","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"solid rotation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Reynolds number","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":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"速度勾配テンソルから算出される渦の特性値について","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"速度勾配テンソルから算出される渦の特性値について"}]},"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":"37122","relation_version_is_last":true,"title":["速度勾配テンソルから算出される渦の特性値について"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:25:27.719475+00:00"}