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圧縮性乱流DNSデータベースを用いたSGSモデルの評価
https://jaxa.repo.nii.ac.jp/records/6561
https://jaxa.repo.nii.ac.jp/records/6561d22b7ef3-834c-4194-a298-01bf205a11b9
名前 / ファイル | ライセンス | アクション |
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47776007.pdf (413.1 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 | 圧縮性乱流DNSデータベースを用いたSGSモデルの評価 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | マッハ数 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 直接数値シミュレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流モデル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | SGSモデル | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Navier-Stokes方程式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 超音速噴流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流拡散 | |||||
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 | Mach number | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | direct numerical simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | turbulence model | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | SGS model | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Navier-Stokes equation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | supersonic jet flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | turbulent diffusion | |||||
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 | Performance evaluation of SGS models using DNS database of compressible turbulence | |||||
著者 |
渡辺, 大輔
× 渡辺, 大輔× 前川, 博× 松尾, 裕一× Watanabe, Daisuke× Maekawa, Hiroshi× Matsuo, Yuichi |
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著者所属 | ||||||
広島大学 大学院工学研究科 | ||||||
著者所属 | ||||||
広島大学 大学院工学研究科 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構 情報技術開発共同センター | ||||||
著者所属(英) | ||||||
en | ||||||
Hiroshima University Graduate School of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Hiroshima University Graduate School of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency Information Technology Center | ||||||
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: 境界層遷移の解明と制御研究会講演論文集 第33回・第34回 en : JAXA Special Publication: Proceedings of the 33rd and 34th JAXA Workshops on Investigation and Control of Boundary-Layer Transition 巻 JAXA-SP-04-002, p. 21-24, 発行日 2005-01-28 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | DNS data of a turbulent plane jet at high Mach numbers were used to evaluate the dynamic mixed model proposed by Salvetti. This work focuses on SGS modeling in the energy equation. High correlation is found between the SGS heat flux q(sub j)(sup L) of modified Leonard term form and the exact SGS heat flux, but not between the SGS heat flux of Salvetti's model and the exact SGS heat flux. Therefore, an improvement is required for the calculation of the model coefficient. In the filtered energy equation, the numerical evaluation results show that the SGS turbulence diffusion term and the SGS heat flux term are dominant during the transition process, the SGS turbulence diffusion term is the most dominant first and the SGS heat flux term in the turbulent stage of the jet. The calculated correlation coefficient suggests that the pressure dilatation term correlate well with the SGS heat flux. | |||||
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: AA0047776007 | |||||
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-04-002 |