{"created":"2023-06-20T15:08:24.447832+00:00","id":37848,"links":{},"metadata":{"_buckets":{"deposit":"170d58fc-37a6-4f6a-a782-be632243d1c3"},"_deposit":{"created_by":1,"id":"37848","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"37848"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00037848","sets":["1887:1891","1896:1898:1913:1915"]},"author_link":["430603","430604","430602","430605"],"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"リーマン問題の厳密角の変動および陰的ゴドノフスキームへの適用"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1994-12","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"110","bibliographicPageStart":"105","bibliographicVolumeNumber":"27","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_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"リーマン問題の厳密解の初期値に対する変動を調べる。この変動は、変動マトリクス(VM)を初期不連続の対応する側と結びつけて導入することにより線形形式で書くことができる。厳密解に対するVMを任意の初期データに対して陽な形で与えることができることを示した。これを陰的ゴドノフスキームに適用することにより、LU差分因子近似分解法を利用して、前進と後退の2回の緩和計算で解くことができるようなdelta形式の線形系が導かれる。そのような方法で得られたスキームの利点は、純頭物体のまわりの超音速･極超音速流れを計算するときにCFL条件数が大きくとれることである。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The present paper is devoted to investigate a variation of the exact Riemann Problem (RP) solution with respect to a variation of the initial data. This variation may be written in the linear form by introducing Variation Matrices (VM) coupled with the corresponding side of initial discontinuity. It is shown that VM for the exact RP solution can be obtained in the explicit form for any initial data. Its application to the implicit Godunov scheme leads to the linear system of equations in delta-form which is solved in two relaxation sweeps, backward and forward ones, by implementing Lower-Upper (LU) approximate factorization. The advantage of the scheme obtained in such a way is large Courant-Friedrichs-Lewy (CFL) number in calculating of super- and hypersonic flows around blunt body.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0004174011","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-27","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":"名古屋大学 工学部 航空学科"},{"subitem_text_value":"名古屋大学 工学部 航空学科"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Nagoya University Department of Aeronautical Engineering, Faculty of Engineering"},{"subitem_text_language":"en","subitem_text_value":"Nagoya University Department of Aeronautical Engineering, Faculty of Engineering"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Menshov, I"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中村, 佳朗"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Menshov, Igor","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakamura, Yoshiaki","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":"2020-01-24"}],"displaytype":"detail","filename":"nalsp0027011.pdf","filesize":[{"value":"563.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"nalsp0027011.pdf","url":"https://jaxa.repo.nii.ac.jp/record/37848/files/nalsp0027011.pdf"},"version_id":"b02d9e24-c505-45b8-8a2d-f42bd31d7351"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"リーマン問題","subitem_subject_scheme":"Other"},{"subitem_subject":"陰的ゴドノフ解法","subitem_subject_scheme":"Other"},{"subitem_subject":"CFL数","subitem_subject_scheme":"Other"},{"subitem_subject":"Courant Friedlich Levy数","subitem_subject_scheme":"Other"},{"subitem_subject":"衝撃波解像度","subitem_subject_scheme":"Other"},{"subitem_subject":"流体力学的不連続","subitem_subject_scheme":"Other"},{"subitem_subject":"カーバンクル現象","subitem_subject_scheme":"Other"},{"subitem_subject":"数値的不安定","subitem_subject_scheme":"Other"},{"subitem_subject":"CFDコード","subitem_subject_scheme":"Other"},{"subitem_subject":"流れ数値シミュレーション","subitem_subject_scheme":"Other"},{"subitem_subject":"超音速流れ","subitem_subject_scheme":"Other"},{"subitem_subject":"極超音速流れ","subitem_subject_scheme":"Other"},{"subitem_subject":"鈍頭物体","subitem_subject_scheme":"Other"},{"subitem_subject":"物体の周りの流れ","subitem_subject_scheme":"Other"},{"subitem_subject":"Riemann problem","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"implicit Godunov scheme","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"CFL number","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Courant Friedlich Levy number","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"shock wave resolution","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"fluid dynamical discontinuity","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"carbuncle phenomenon","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical instability","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"CFD code","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical flow simulation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"supersonic flow","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"hypersonic flow","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"blunt body","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"flow around body","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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":"A variation of the Riemann problem solution and its application to implicit Godunov's scheme","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"A variation of the Riemann problem solution and its application to implicit Godunov's scheme","subitem_title_language":"en"}]},"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":"37848","relation_version_is_last":true,"title":["A variation of the Riemann problem solution and its application to implicit Godunov's scheme"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T22:48:12.213554+00:00"}