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  1. 060 工学部
  2. 0602 紀要
  3. 06021 信州大学工学部紀要
  4. Vol. 30

最大乱子の寿命時間と通過時間

http://hdl.handle.net/10091/3181
93acc2a4-cb96-433d-a712-995e02c8ca13
名前 / ファイル ライセンス アクション
Engineering30-09.pdf Engineering30-09.pdf (452.3 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2009-06-30
タイトル
タイトル 最大乱子の寿命時間と通過時間
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
その他(別言語等)のタイトル
その他のタイトル Relations between Lagrangian and Eulerian Scales of Turbulence
著者 余越, 正一郎

× 余越, 正一郎

WEKO 39814

余越, 正一郎

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出版者
出版者 信州大学工学部
引用
内容記述タイプ Other
内容記述 信州大学工学部紀要 30: 119-127 (1971)
書誌情報 信州大学工学部紀要

巻 30, p. 119-127, 発行日 1971-07-25
抄録
内容記述タイプ Abstract
内容記述 Estimations of the relations between the Eulerian and Lagrangian scales were made in the large Reynolds number turbulence. With the Eulerian and Lagrangian structural functions approximated by their inertial subrange forms between the appropriate passage-time and life-time limits, it was found that TL/TE=α/i, α=5/ 4√2 Ce3/2 / CL where TL is the Lagrangian integral time scale, equal to ∫∞₀ RL(τ)dτ where RL(τ) is the Lagrangian correlation coefficient of particle velocity for time lag τ. TE is the Eulerian integral time scale defined similarly to TL but in terms of the correlation coefficient RE(t) of eddy velocity at a fixed point. i is the intensity of turbulence. CE is the universal constant of the Eulerian structural function, nearly equal to 1.9. CL is the universal constant of the Lagrangian structural function. Simultaneous measurements of the Eulerian and Lagrangian properties of turbulence by an ultrasonic flowmeter and small particles floating on the surface of an open channel with uniform flow made it possible to estimate the value of α. The result was a≈0.41.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 0037-3818
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00121228
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