気泡流中の乱れの逆エネルギーカスケード構造 (第2報,Euler-Lagrange モデルによる数値解析)

Material type: 文書・図像類

Author: 村井, 祐一ほか

Publisher: 日本機械学会

Publication date: 1999-04

Material Format: Digital

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Note (General)：: The inverse energy cascade in bubbly flow is investigated by a numerical simulation using the Eulerian-Lagrangian model in which the governing equatio...

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Material Type: 文書・図像類
Title: 気泡流中の乱れの逆エネルギーカスケード構造 (第2報,Euler-Lagrange モデルによる数値解析)
Author/Editor: 村井, 祐一
北川, 石英
宋, 向群
山本, 富士夫
太田, 淳一
MURAI, Yuichi
KITAGAWA, Atsuhide
SONG, Xiang-Qun
YAMAMOTO, Fujio
OHTA, Junichi
Author Heading: 村井, 祐一
北川, 石英
宋, 向群
山本, 富士夫
太田, 淳一
MURAI, Yuichi
KITAGAWA, Atsuhide
SONG, Xiang-Qun
YAMAMOTO, Fujio
OHTA, Junichi
Publication, Distribution, etc.: 日本機械学会
Publication Date: 1999-04
Publication Date (W3CDTF): 1999-04
Alternative Title: Inverse Energy Cascade Structure of Turbulence in a Bubbly Flow (2nd Report, Numerical Analysis using Eulerian-Lagrangian Model Equations)
Periodical title: 日本機械学会論文集. B編
No. or year of volume/issue: 65 632
Volume: 65
Issue: 632
Pages: 1347-1354
Text Language Code: jpn
Subject Heading: Multiphase Flow
Bubble
Turbulent Flow
Computational Fluid Dynamics
Target Audience: 一般
Note (General): The inverse energy cascade in bubbly flow is investigated by a numerical simulation using the Eulerian-Lagrangian model in which the governing equations are formulated with emphasis on the translational motion of bubbles in non-uniform flow. This paper is concerned with the validation of the numerical model and various parametric dependency on the inverse cascade. The calculated results reveal that, 1)continuous growth of the spatial fluctuation scale in a bubble-induced flow is well predicted by the present numerical model and the results have a good analogy with the experimental results which are introduced in our first report, 2)the strong relationship between energy decaying process and bubble-bubble distance interval identified also by the present analysis, 3)the slope of energy-decaying at high wavenumber region depends on the kinetic viscosity of liquid,and that at low wave number region depends on inunifornity of buoyancy distribution which changes due to the bubble motion.
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22210&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22210&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Rights (production): 〓 1999 日本機械学会
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ