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Relative diffusion of a pair of fluid particles in the inertial subrangeof turbulence
http://hdl.handle.net/2237/7083
http://hdl.handle.net/2237/70830c3a4ed6-7c09-413a-82a2-21b10fee411b
名前 / ファイル | ライセンス | アクション |
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PhysFluids_14_L69.pdf (87.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2006-10-26 | |||||
タイトル | ||||||
タイトル | Relative diffusion of a pair of fluid particles in the inertial subrangeof turbulence | |||||
言語 | en | |||||
著者 |
Ishihara, Takashi
× Ishihara, Takashi× Kaneda, Yukio |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | opyright (2002) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. | |||||
抄録 | ||||||
内容記述 | Turbulent diffusion of a pair of fluid particles in 3-dimensional homogeneous and isotropic turbulence was studied using a high-resolution direct numerical simulation (DNS)with 1024^3 grid points. The DNS showed that the mean square of the distance δx between the two fluid particles grows with time t as <|δx|^2>~C∈t^3 in the inertial subrange, which is in agreement with Richardson (1926)and Obukhov (1941), where C≈0.7 and ∈ is the mean dissipation rate per unit mass. A simple Lagrangian closure approximation for <|δx|^2> is shown to be in good agreement with the DNS. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Institute of Physics | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/1.1508443 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1070-6631 | |||||
書誌情報 |
en : Physics of Fluids 巻 14, 号 11, p. L69-L72, 発行日 2002-11 |
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application/pdf | ||||||
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値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/7083 | |||||
識別子タイプ | HDL |