{"created":"2023-06-20T15:08:22.296240+00:00","id":37802,"links":{},"metadata":{"_buckets":{"deposit":"8bd7339d-3bed-4a96-9ce8-f779853e9a69"},"_deposit":{"created_by":1,"id":"37802","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"37802"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00037802","sets":["1887:1891","1896:1898:1913:1915"]},"author_link":["483069","483068","483066","483071","483065","483067","483070","483072"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Numerical simulation of aerodynamic problems in high speed railways"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1994-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"248","bibliographicPageStart":"243","bibliographicVolumeNumber":"22","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所特別資料: 第11回航空機計算空気力学シンポジウム論文集"},{"bibliographic_title":"Special Publication of National Aerospace Laboratory: Proceedings of the 11th NAL Symposium on aircraft computational aerodynamics","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 10-11 Jun. 1993 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 10-11 Jun. 1993 Tokyo Japan","subitem_description_type":"Other"}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"列車走行速度を大きく向上させたいとする鉄道にとって空気力学的特性は重要な課題となりつつある。これら課題を追究する上で従来の風洞や実車走行試験に加え、数値シミュレーションが強力な手段となると期待されている。本論文は、列車空気力学に関する数値シミュレーションの結果をいくつか紹介する。第1の例は列車の空力特性を評価するために行ったものである。TVDスキームとキメラ法を用いて3次元圧縮性ナビエ・ストークス方程式を解いた。頭部形状および地面条件の影響を調べた。第2の例は列車のトンネル進入によってひき起される非定常流れに関するもので、列車による圧縮波を正確に予測するためTVDスキームを用いて軸対称圧縮性オイラー方程式を解いた。シミュレーション結果は模型実験データとよく一致することがわかった。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Aerodynamic problems are of growing importance to railways aspiring for a remarkable speedup of trains. For research on these problems numerical simulation is expected to be a powerful tool in addition to conventional wind tunnel tests and running tests. This paper presents some results of numerical simulations on railway aerodynamics. The first simulation is performed to evaluate aerodynamic characteristics of trains. Three dimensional compressible Navier-Stokes equations are solved using TVD (Total Variation Diminishing) scheme and Chimera method. Effect of nose shape and ground condition is investigated. The second simulation concerns an unsteady flow induced by a train entering a tunnel. Axisymmetric compressible Euler equations are solved by TVD scheme for the purpose of exact prediction of compression wave generated by the train. The result of the simulation is found to agree well with model experimental data.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0004171042","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-22","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":"鉄道総合技術研究所"},{"subitem_text_value":"鉄道総合技術研究所"},{"subitem_text_value":"鉄道総合技術研究所"},{"subitem_text_value":"航空宇宙技術研究所"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Railway Technical Research Institute"},{"subitem_text_language":"en","subitem_text_value":"Railway Technical Research Institute"},{"subitem_text_language":"en","subitem_text_value":"Railway Technical Research Institute"},{"subitem_text_language":"en","subitem_text_value":"National Aerospace Laboratory"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"飯田, 雅宣"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉田, 康夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"前田, 達夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小川, 哲"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Iida, Masanobu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yoshida, Yasuo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Maeda, Tatsuo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ogawa, Satoru","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":"nalsp0022041.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"nalsp0022041.pdf","url":"https://jaxa.repo.nii.ac.jp/record/37802/files/nalsp0022041.pdf"},"version_id":"fc0b9b5e-2c01-4fcf-8706-3b9c26a1ef5c"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"鉄道空気力学","subitem_subject_scheme":"Other"},{"subitem_subject":"列車","subitem_subject_scheme":"Other"},{"subitem_subject":"列車まわり気流特性","subitem_subject_scheme":"Other"},{"subitem_subject":"空気抵抗","subitem_subject_scheme":"Other"},{"subitem_subject":"地面効果","subitem_subject_scheme":"Other"},{"subitem_subject":"トンネル進入","subitem_subject_scheme":"Other"},{"subitem_subject":"トンネル内圧力波","subitem_subject_scheme":"Other"},{"subitem_subject":"トンネル入口形状","subitem_subject_scheme":"Other"},{"subitem_subject":"高速列車","subitem_subject_scheme":"Other"},{"subitem_subject":"流れ数値シミュレーション","subitem_subject_scheme":"Other"},{"subitem_subject":"ナビエ・ストークス方程式数値解","subitem_subject_scheme":"Other"},{"subitem_subject":"キメラ法","subitem_subject_scheme":"Other"},{"subitem_subject":"CFD応用","subitem_subject_scheme":"Other"},{"subitem_subject":"CFD対風洞相関","subitem_subject_scheme":"Other"},{"subitem_subject":"計算空気力学","subitem_subject_scheme":"Other"},{"subitem_subject":"railway aerodynamics","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"train","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"train flow characteristic","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic drag","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"ground effect","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"tunnel entry","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"tunnel pressure wave","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"tunnel entrance geometry","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"high speed train","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical flow simulation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Navier Stokes equation numerical solution","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Chimera method","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"CFD application","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"CFD wind tunnel correlation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Computational Fluid Dynamics","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 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