Varieties of dynamic multiscaling in fluid turbulence

Mitra, Dhrubaditya ; Pandit, Rahul (2004) Varieties of dynamic multiscaling in fluid turbulence Physical Review Letters, 93 (2). 024501_1-024501_4. ISSN 0031-9007

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We show that different ways of extracting time scales from time-dependent velocity structure functions lead to different dynamic-multiscaling exponents in fluid turbulence. These exponents are related to equal-time multiscaling exponents by different classes of bridge relations, which we derive. We check this explicitly by detailed numerical simulations of the Gledzer-Ohkitani-Yamada shell model for fluid turbulence. Our results can be generalized to any system in which both equal-time and time-dependent structure functions show multiscaling.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:33564
Deposited On:30 Mar 2011 12:36
Last Modified:17 May 2016 16:25

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