Universality of modal time correlation functions in medium scale

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

We investigate the universality of modal time correlation functions using a closure equation for the normalized dimensionless time correlation function. As a candidate for a new universal function for turbulence, we propose a solution to the closure equation in the case of the critical value of the wavenumber, at which the decay form of the time correlation function changes from exponential to oscillatory exponential. The solution is compared with the normalized dimensionless time correlation functions obtained from numerical results for one-dimensional turbulence, such as the Kuramoto-Sivashinsky equation and that obtained from the direct interaction approximation for three-dimensional Navier-Stokes turbulence. As a result of the comparison, we provide evidence to show that the normalized dimensionless time correlation function is universal in the case of the critical value of the wavenumber.

元の言語英語
記事番号074004
ジャーナルjournal of the physical society of japan
83
発行部数7
DOI
出版物ステータス出版済み - 7 15 2014

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turbulence
closures
decay
approximation
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Universality of modal time correlation functions in medium scale. / Okamura, Makoto.

:: journal of the physical society of japan, 巻 83, 番号 7, 074004, 15.07.2014.

研究成果: ジャーナルへの寄稿記事

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