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Scale distributions and fractal dimensions in turbulence

Catrakis, Haris J. and Dimotakis, Paul E. (1996) Scale distributions and fractal dimensions in turbulence. Physical Review Letters, 77 (18). pp. 3795-3798. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:CATprl96

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Abstract

A new geometric framework connecting scale distributions to coverage statistics is employed to analyze level sets arising in turbulence as well as in other phenomena. A 1D formalism is described and applied to Poisson, lognormal, and power-law statistics. A d-dimensional generalization is also presented. Level sets of 2D spatial measurements of jet-fluid concentration in turbulent jets are analyzed to compute scale distributions and fractal dimensions. Lognormal statistics are used to model the level sets at inner scales. The results are in accord with data from other turbulent flows.


Item Type:Article
Additional Information:©1996 The American Physical Society. Received 18 March 1996; revised 8 July 1996. The support under AFOSR Grant No. F49260-94-1-0353 and discussions with C. L. Bond, M. C. Cross, A. Leonard, D. I. Pullin, and P. G. Saffman are gratefully acknowledged.
Subject Keywords:ZERO-CROSSINGS; FLUCTUATIONS; SURFACES
Record Number:CaltechAUTHORS:CATprl96
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:CATprl96
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.77.3795
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4340
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Aug 2006
Last Modified:18 Sep 2014 18:11

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