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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Relative diffusion of a pair of fluid particles in the inertial subrangeof turbulence

http://hdl.handle.net/2237/7083
0c3a4ed6-7c09-413a-82a2-21b10fee411b
名前 / ファイル ライセンス アクション
PhysFluids_14_L69.pdf PhysFluids_14_L69.pdf (87.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
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
著者 Ishihara, Takashi

× Ishihara, Takashi

WEKO 14126

Ishihara, Takashi

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Kaneda, Yukio

× Kaneda, Yukio

WEKO 14127

Kaneda, Yukio

Search repository
権利
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.
内容記述タイプ Abstract
出版者
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
DOI
関連識別子
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1063/1.1508443
ISSN
収録物識別子タイプ ISSN
収録物識別子 1070-6631
書誌情報 Physics of Fluids

巻 14, 号 11, p. L69-L72, 発行日 2002-11
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/7083
識別子タイプ HDL
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