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Scaling hypothesis leading to generalized extended self-similarity in turbulence
https://nitech.repo.nii.ac.jp/records/5049
https://nitech.repo.nii.ac.jp/records/5049042567a5-ccc2-4a26-af58-36557e79b26b
名前 / ファイル | ライセンス | アクション |
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(c)2002 The American Physical Society
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
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公開日 | 2012-11-07 | |||||||||||||
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タイトル | Scaling hypothesis leading to generalized extended self-similarity in turbulence | |||||||||||||
言語 | en | |||||||||||||
言語 | ||||||||||||||
言語 | eng | |||||||||||||
資源タイプ | ||||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
資源タイプ | journal article | |||||||||||||
著者 |
Fujisaka, Hirokazu
× Fujisaka, Hirokazu
× Nakayama, Yasuya
× Watanabe, Takeshi
× Grossmann, Siegfried
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著者別名 | ||||||||||||||
姓名 | 渡邊, 威 | |||||||||||||
bibliographic_information |
en : PHYSICAL REVIEW E 巻 65, 号 4, p. 046307-1-046307-16, 発行日 2002-04-10 |
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出版者 | ||||||||||||||
出版者 | American Physical Society | |||||||||||||
言語 | en | |||||||||||||
ISSN | ||||||||||||||
収録物識別子タイプ | ISSN | |||||||||||||
収録物識別子 | 1539-3755 | |||||||||||||
item_10001_source_id_32 | ||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||
収録物識別子 | AA11558033 | |||||||||||||
出版タイプ | ||||||||||||||
出版タイプ | VoR | |||||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
item_10001_relation_34 | ||||||||||||||
関連タイプ | isIdenticalTo | |||||||||||||
識別子タイプ | DOI | |||||||||||||
関連識別子 | http://dx.doi.org/10.1103/PhysRevE.65.046307 | |||||||||||||
関連名称 | 10.1103/PhysRevE.65.046307 | |||||||||||||
内容記述 | ||||||||||||||
内容記述タイプ | Other | |||||||||||||
内容記述 | A scaling hypothesis leading to generalized extended self-similarity (GESS) for velocity structure functions, valid for intermediate scales in isotropic, homogeneous turbulence, is proposed. By introducing an effective scale r?, monotonically depending on the physical scale r, with the use of the large deviation theory, the asymptotic forms of the probability densities for the velocity differences ur and for the coarse-grained energy-dissipation rate fluctuations εr, compatible with this GESS, are proposed. The probability density for εr is shown to have the form P r(ε)?ε-1(r?/L) sr?(zr?(ε)) with zr?(ε)=ln(ε/ εL)/ln(L/r?), where L and εL are the stirring scale and the coarse-grained energy-dissipation rate over the scale L. The concave function Sr?(z), the spectrum, plays the central role of the present approach. Comparing the results with numerical and experimental data, we explicitly obtain the fluctuation spectra Sr?(z). | |||||||||||||
言語 | en |