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Direct Numerical Simulation By LBM and Analyses of Two-dimensional Isotropic Turbulence
https://jaxa.repo.nii.ac.jp/records/43577
https://jaxa.repo.nii.ac.jp/records/435778bda252f-4f64-4702-a787-b2c708a18884
名前 / ファイル | ライセンス | アクション |
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nalsp0059005.pdf (2.0 MB)
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Item type | テクニカルレポート / Technical Report(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Direct Numerical Simulation By LBM and Analyses of Two-dimensional Isotropic Turbulence | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Direct numerical simulation, Lattice Boltzmann method, Two-dimensional turbulence | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18gh | |||||
資源タイプ | technical report | |||||
著者 |
Ao-kui, Xiong
× Ao-kui, Xiong |
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著者所属(英) | ||||||
en | ||||||
Department of Machine Intelligence and Systems Engineering Graduate School of Engineering, Tohoku University | ||||||
出版者 | ||||||
出版者 | 航空宇宙技術研究所 | |||||
出版者(英) | ||||||
出版者 | National Aerospace Laboratory(NAL) | |||||
書誌情報 |
独立行政法人航空宇宙技術研究所特別資料 en : Special Publication of National Aerospace Laboratory SP-59 巻 59, p. 4, 発行日 2003-06 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Direct numerical simulations of the forced two-dimensional turbulence are performed by lattice Boltzmann method with high resolutions. It is confirmed that the lattice Boltzmann method is an alternative approach to simulate multi-scales flows efficiently before instability takes place. The instability can occur even after millions time-steps of iteration. Based on the database of the DNS, the behaviors of energy and enstrophy flux and the features of SGS Lamb vector in context of large eddy simulation are discussed. The most important observation is that the transverse component of the SGS Lamb vector, which plays a key role in the dynamics, only dominates in the regions of curved sheet-like structures. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1347-457X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10097345 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: NALSP0059005 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: NAL SP-59 |