Multi-time, multi-scale correlation functions in turbulence and in turbulent models

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• 作者：Biferale ; L. ; Boffetta ; G. ; Celani ; A. ; Toschi ; F.
• 关键词：47.27Gs ; Turbulence ; Multifractals ; Dynamical models
• 刊名：Physica D
• 出版年：1999
• 出版时间：March 15, 1999
• 年：1999
• 卷：127
• 期：3-4
• 页码：187-197
• 全文大小：132 K

文摘

A multifractal-like representation for multi-time, multi-scale velocity correlation in turbulence and dynamical turbulent models is proposed. The importance of subleading contributions to time correlations is highlighted. The fulfillment of the dynamical constraints due to the equations of motion is thoroughly discussed. The predictions stemming from this representation are tested within the framework of shell models for turbulence.