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Lacunarity and intermittency in fluid turbulenceIt is shown that oscillations in the high-order moments of turbulent velocity fields are inherent to the fractal character of intermittent turbulence and are a feature of the lacunarity of fractal sets. Oscillations in simple Cantor sets are described, and a single parameter to measure lacunarity is identified. The connection between oscillations in fractals and in the turbulent velocity correlations is discussed using the phenomenological beta model of intermittent turbulence (Frisch et al., 1978).
Document ID
19860048960
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1016/0375-9601(86)90695-X
Authors
Smith, L. A. (NASA Goddard Institute for Space Studies New York, United States)
Fournier, J.-D. (NASA Goddard Inst. for Space Studies New York, NY, United States)
Spiegel, E. A. (Columbia University New York, United States)
Date Acquired
August 12, 2013
Publication Date
March 17, 1986
Publication Information
Publication: Physics Letters
Volume: 114A
ISSN: 0375-9601
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
86A33698
Funding Number(s)
CONTRACT_GRANT: NSF PHY-80-2371
CONTRACT_GRANT: NCC5-29
Distribution Limits
Public
Copyright
Other

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