{"created":"2023-06-20T14:38:57.692746+00:00","id":5612,"links":{},"metadata":{"_buckets":{"deposit":"03770f8a-81b9-4818-8ae2-ff93f015940f"},"_deposit":{"created_by":1,"id":"5612","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"5612"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00005612","sets":["1398:1530:1542","1543:1874:1886","1887:1891","9:789:972:985"]},"author_link":["27465","27467","27464","27466"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Numerical analysis on subsonic and transonic aerodynamic characteristics of bullet train in tube"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-02-29","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"38","bibliographicPageStart":"33","bibliographicVolumeNumber":"JAXA-SP-07-016","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料: 第39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2007論文集"},{"bibliographic_title":"JAXA Special Publication: Proceedings of 39th Fluid Dynamics Conference/Aerospace Numerical Simulation Symposium 2007","bibliographic_titleLang":"en"}]}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"For the purpose of reducing drag and further speeding up of high-speed train, the axisymmetric Navier-Stokes analyses have been numerically conducted around a bullet train running in depressurized tube. The flows around a simple axisymmetric body, which runs in high subsonic and transonic regimes at velocity more than 500 km/h and freestream pressure 0.001 atm, was solved for various tunnel diameters. When the train speed increases or the diameter of the tunnel decreases, the pressure on the nose tip of the train rises and the separation in the rear part of the train becomes more significant. As a result, the 'drag divergence' phenomena were observed on the plots of the relation between the drag coefficient and the freestream Mach number. The results show that when the tube is depressurized to 0.001 atm, further speeding up becomes possible with smaller power requirement than the existing Shinkansen bullet train.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0063742006","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-07-016","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"},{"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":"University of Tokyo Graduate School"},{"subitem_text_language":"en","subitem_text_value":"University of Tokyo Graduate School of Frontier Sciences"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"若山, 一樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鈴木, 宏二郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Wakayama, Kazuki","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":"63742006.pdf","filesize":[{"value":"720.0 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"63742006.pdf","url":"https://jaxa.repo.nii.ac.jp/record/5612/files/63742006.pdf"},"version_id":"3e476775-4014-4f45-b198-52c4635cc013"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"高速輸送システム","subitem_subject_scheme":"Other"},{"subitem_subject":"減圧チューブ","subitem_subject_scheme":"Other"},{"subitem_subject":"流体力","subitem_subject_scheme":"Other"},{"subitem_subject":"空力係数","subitem_subject_scheme":"Other"},{"subitem_subject":"空力抵抗","subitem_subject_scheme":"Other"},{"subitem_subject":"計算流体力学","subitem_subject_scheme":"Other"},{"subitem_subject":"ナビエ・ストークス方程式","subitem_subject_scheme":"Other"},{"subitem_subject":"境界層剥離","subitem_subject_scheme":"Other"},{"subitem_subject":"剥離流","subitem_subject_scheme":"Other"},{"subitem_subject":"空力特性","subitem_subject_scheme":"Other"},{"subitem_subject":"rapid transit system","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"depressurized tube","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic force","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic coefficient","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic drag","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"computational fluid dynamics","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Navier-Stokes equation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"boundary layer separation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"separated flow","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic characteristic","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":"チューブトレインの亜音速/遷音速空力特性の数値解析","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"チューブトレインの亜音速/遷音速空力特性の数値解析"}]},"item_type_id":"5","owner":"1","path":["985","1542","1886","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"5612","relation_version_is_last":true,"title":["チューブトレインの亜音速/遷音速空力特性の数値解析"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T08:11:06.506556+00:00"}