The Dynamics of Busting Process in Wall Turbulence : Classical Phenomenology and Applications
スポンサーリンク
概要
- 論文の詳細を見る
We have examined bursting processes observed in turbulent channel flow by direct numerical simulation of the incompressible Navier-Stokes equations in a minimal flow unit. A traveling wave solution (TWS) is obtained by a shooting method. The TWS corresponds to a saddle point in a two-dimensional phase space. A low-dimensional dynamics confined to the near-wall region is proposed in terms of the TWS and its manifolds. The characteristics of the coherent structures constituting the TWS are investigated dynamically and statistically in detail. The dynamics well describes an elementary process of intermittent turbulent regeneration in wall turbulence.
- 社団法人日本物理学会の論文
- 2001-03-15
著者
-
Itano T
Kyoto Univ. Kyoto Jpn
-
ITANO Tomoaki
Division of Physics and Astronomy, Graduate School of Science, Kyoto University
-
TOH Sadayoshi
Division of Physics and Astronomy, Graduate School of Science, Kyoto University
-
Itano Tomoaki
Division Of Physics And Astronomy Graduate School Of Science Kyoto University
-
Toh Sadayoshi
Division Of Physics And Astronomy Graduate School Of Science Kyoto University
関連論文
- The Dynamics of Busting Process in Wall Turbulence : Classical Phenomenology and Applications
- Model of Turbulent Relative Dispersion : A Self-Similar Telegraph Equation(Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid mechanics)
- Time Scalings of Entropy Transfer Process in Free Convection
- Turbulent Relative Dispersion in Two-Dimensional Free Convection Turbulence(Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid mechanics)
- Removal of the Phase Oscillation Observed in Wavelet Analysis in Terms of Spatial Filtering
- Telegraph-Type versus Diffusion-Type Models of Turbulent Relative Dispersion(Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid mechanics)