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保存系に対する保存型差分近似スキームの問題点
https://jaxa.repo.nii.ac.jp/records/6479
https://jaxa.repo.nii.ac.jp/records/647904296807-a40d-4110-a874-96c5ad341df8
名前 / ファイル | ライセンス | アクション |
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48469039.pdf (823.7 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 保存系に対する保存型差分近似スキームの問題点 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 保存型差分スキーム | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 保存則 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 差分近似 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | オイラーの運動方程式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 圧縮性流れ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 数値解析 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 離散モデル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 膨張波 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | conservative difference scheme | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | conservation law | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | difference approximation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Euler equation of motion | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | compressible flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | numerical analysis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | discrete model | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | expansion wave | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Some problems in conservative difference schemes for the conservation laws | |||||
著者 |
相曽, 秀昭
× 相曽, 秀昭× Abouziarov, Moustafa× Aiso, Hideaki× Abouziarov, Moustafa |
|||||
著者所属 | ||||||
宇宙航空研究開発機構 総合技術研究本部 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構 総合技術研究本部 | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構 | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2004論文集 en : JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2004 巻 JAXA-SP-04-012, p. 230-235, 発行日 2005-03-25 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | There is concern about the difference approximation for the compressible Euler equations. While it is usually assumed that the difference increments tend to go to zero when the convergence or other issues like the order of accuracy is discussed, there are still problems in the numerical behaviors which should be discussed from the viewpoint that the difference approximation of interest is a 'discrete model' with the difference increments fixed to be some finite values. Two of such problems are discussed, the carbuncle instability and the unphysical dip of density that may happen with the occurrence of strong rarefaction waves. It seems that they are somehow related with the property of compressible Euler equations that the system has linearly degenerate fields while the whole system is nonlinear. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0048469039 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-04-012 |