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流体計算における数値的不都合
https://jaxa.repo.nii.ac.jp/records/5971
https://jaxa.repo.nii.ac.jp/records/597182e6b59c-e454-4263-9981-b9f67019cdca
名前 / ファイル | ライセンス | アクション |
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63154027.pdf (518.5 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 | 流体計算における数値的不都合 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 離散化 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 数値安定性 | |||||
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 | 数値解析 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Godunov法 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | カーバンクル不安定性 | |||||
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 | 連続モデル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | リーマン問題 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 衝撃波 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 膨張波 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | エントロピー解 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 波曲線 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | discretization | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | numerical stability | |||||
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 | numerical analysis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Godunov method | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Carbuncle instability | |||||
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 | continuous model | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Riemann problem | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | shock wave | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | expansion wave | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | entropy solution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | wave curve | |||||
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 | Instability in difference approximation for the compressible EulerEquations and the linear field | |||||
著者 |
相曽, 秀昭
× 相曽, 秀昭× Aiso, Hideaki |
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著者所属 | ||||||
宇宙航空研究開発機構 | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency | ||||||
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2006論文集 en : JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2006 巻 JAXA-SP-06-010, p. 145-150, 発行日 2006-12-01 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Numerical computation of differential equations usually needs some discretization of the original equation. The discretization is called discrete (or discretized) model, while the original differential equation is called continuous model. The properties of both models are expected to be of exact coincidence, but there is always some inconsistency between them. In such a situation, we need to know the inconsistency in order to understand what a result of numerical computation means. Otherwise we might misunderstand it to regard a specific behavior of numerical solution coming from the property of discrete model but not from that of continuous one as a part of behavior of the original equation's solution. Here we show some trial to analyze the numerical instability that occurs in numerical calculation of shock waves, where occurs a typical example of inconsistency between the continuous and discrete models. | |||||
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: AA0063154027 | |||||
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-06-010 |