Time Dependence of Eulerian Velocity Correlation for the Duration of Richardson's Law

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概要

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• It is shown that the effective temporal damping factor of the spectrum of the Eulerian velocity correlation becomes the function of κ^<2/3>t (κ : wave number, t : time) for the duration of Richardson's four-thirds law in the steady, incompressible, homogeneous and isotropic turbulent flow. In addition, it is shown that this effect is caused by the time dependence of the effective Eulerian characteristic time, and is not contrary to the general understanding that the temporal damping factor of the spectrum of the Eulerian velocity correlation is the function of υ_0κt (υ_0 : magnitude of the typical flow velocity).

• 1993-01-15

著者

• Nakao Hajime

  School Of Science Kwansei Gakuin University

関連論文

• Time Dependence of Eulerian Velocity Correlation for the Duration of Richardson's Law
• Mechanism in Leading to Richardson's Four-Thirds Law
• Evaluation of Functional Integral

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