JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
63608004.pdf1.95 MB
title一様等方性乱流場における渦構造の階層性について
Other TitleHierarchical vortical structures in a homogeneous isotropic turbulence
Author(jpn)Waleed, A. K.; 伊澤 精一郎; 茂田 正哉; 福西 祐
Author(eng)Waleed, A. K.; Izawa, Seiichiro; Shigeta, Masaya; Fukunishi, Yu
Author Affiliation(jpn)東北大学 工学部 機械航空工学科; 東北大学 工学部 機械航空工学科; 東北大学 工学部 機械航空工学科; 東北大学 工学部 機械航空工学科
Author Affiliation(eng)Tohoku University Department of Mechanical Engineering, Faculty of Engineering; Tohoku University Department of Mechanical Engineering, Faculty of Engineering; Tohoku University Department of Mechanical Engineering, Faculty of Engineering; Tohoku University Department of Mechanical Engineering, Faculty of Engineering
Issue Date2007-12-28
PublisherJapan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構
Publication title境界層遷移の解明と制御研究会講演論文集 第39回
Proceedings of the 39th JAXA Workshops on Investigation and Control of Boundary-Layer Transition
Start page13
End page14
Publication date2007-12-28
Languagejpn
AbstractExtraction and traction of hierarchical vortical structures in a homogeneous isotropic turbulence are attempted. Fourier and Wavelet decompositions are applied to extract three scales, namely the large, intermediate and fine scaled structures from the flow field. Both filtering methods captured almost the same structures. An automatic tracking scheme that could handle vortex division is developed and presented.
DescriptionJAXA Special Publication
宇宙航空研究開発機構特別資料
Keywordsisotropic turbulence; vortex; vorticity; energy cascade; flow distribution; direct numerical simulation; Kolmogorov theory; energy spectrum; Reynolds number; homogeneous turbulence; 等方性乱流場; 渦; 渦度; エネルギーカスケード; 流れの分布; 直接数値シミュレーション; コルモゴロフ理論; エネルギースペクトル; レイノルズ数; 一様性乱流場
Document TypeConference Paper
JAXA Category特別資料
ISSN1349-113X
SHI-NOAA0063608004
Report NoJAXA-SP-07-009
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/29019


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