Determination of a Dynamical Scaling Function in a Cascade Model of Turbulence : General and Mathematical Physics
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概要
- 論文の詳細を見る
A dynamical scaling function in a cascade model of turbulence is numerically determined. It indicates that there are two time domains in the scaling function. In the first domain fluctuations supplied to the low wavenumber region are transferred to the higher wavenumber region without any significant effect from the molecular viscosity. The scaling is not the Kolmogorov type, but the intermittent one.After reaching a certain maximum wavenumber, the turbulence enters the second domain, where the fluctuations decay due to the viscosity and obey the Kolmogorov scaling. It is, then, derived that the lower order structure functions obey the Kolmogorov scaling, while the higher order ones show the intermittent scaling. Finally, the present model is discussed in relation to the structures in a turbulent flow.
- 理論物理学刊行会の論文
- 1988-03-25
著者
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Nanba T
Graduate School Of Science And Technology Kobe University
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Nakano Tohru
Depertment Of Physics Chuo University
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NAKANO Tohru
Depertment of Physics, Chuo University
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