WEKO3
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スパン方向の温度勾配を有する平行平板間乱流の直接数値シミュレーション(乱流統計量に関する検討)
http://hdl.handle.net/10191/5755
http://hdl.handle.net/10191/575520f954ad-5e63-4744-9425-f6fba6e0b0bc
名前 / ファイル | ライセンス | アクション |
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9_0053.pdf (624.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-04-08 | |||||
タイトル | ||||||
タイトル | スパン方向の温度勾配を有する平行平板間乱流の直接数値シミュレーション(乱流統計量に関する検討) | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | スパン方向の温度勾配を有する平行平板間乱流の直接数値シミュレーション(乱流統計量に関する検討) | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Turbulent Channel Flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Spanwise Temperature Gradient | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Turbulence Statistics | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Direct Numerical Simulation | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
その他のタイトル | ||||||
その他のタイトル | Direct Numerical Simulation of a Turbulent Channel Flow with a Spanwise Temperature Gradient : Examination on the Turbulence Statistics | |||||
著者 |
松原, 幸治
× 松原, 幸治× 小林, 睦夫× 前川, 博× 鈴木, 健二郎 |
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著者別名 | ||||||
識別子 | 44900 | |||||
識別子Scheme | WEKO | |||||
姓名 | Matsubara, Koji | |||||
著者別名 | ||||||
識別子 | 44901 | |||||
識別子Scheme | WEKO | |||||
姓名 | Kobayashi, Mutsuo | |||||
著者別名 | ||||||
識別子 | 44902 | |||||
識別子Scheme | WEKO | |||||
姓名 | Maekawa, Hiroshi | |||||
著者別名 | ||||||
識別子 | 44903 | |||||
識別子Scheme | WEKO | |||||
姓名 | Suzuki, Kenjiro | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Direct numerical simulation was performed for a turbulent channel flow where the time mean temperature has a spanwise gradient. As the first step of succesive investigations, turbulence statistics related to the spanwise heat transfer were examined. A computational code based on the finite difference scheme was developed for this purpose. The calculated statistics on the flow field were found to be in good agreement with the result of the existing direct numerical simulation by Kasagi et al. (1992). The eddy diffusivity ratio, ε_<nz>/ε_m and the Reynolds normal stress ratio, <ω^2>^^^-/<υ^2>^^^- show rapid increase toward the wall, as pointed out by Maekawa et al. (1991). However, the rapidincrease region of the ε_<nz>/ε_m was nearer to the wall than the Maekwa's result and found to roughly agree with that of the <ω^2>^^^-/<υ^2>^^^-. This result implies that, in the near-wall region, the spanwise turbulent heat flux per its production rate shows rough agreement with the wall-normal turbulent heat flux per its production rate. In addition, two point correlation coefficient, Q_<wθ> also agrees with Q_<vθ> in the range of y^+<75. In these points, the heat transfer in the present case has some analogy with that in the heated-wall case. Moreover, the budget of the spanwise turbulent heat flux was examined. It was found that the budget shows near local equilibrium except for the near-wall region. | |||||
書誌情報 |
日本機械学会論文集. B編 en : 日本機械学会論文集. B編 巻 64, 号 619, p. 856-863, 発行日 1998-03 |
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出版者 | ||||||
出版者 | 日本機械学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03875016 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00187441 | |||||
権利 | ||||||
権利情報 | 日本機械学会 | |||||
権利 | ||||||
権利情報 | 本文データは学会の許諾に基づくCiNiiからの複製である | |||||
著者版フラグ | ||||||
値 | publisher | |||||
異版である | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://ci.nii.ac.jp/naid/110002396868 |