On the effects of surrogacy of energy dissipation in determining the intermittency exponent in fully developed turbulence

J. Cleve; M. Greiner; K. R. Sreenivasan

doi:10.1209/epl/i2003-00298-x

On the effects of surrogacy of energy dissipation in determining the intermittency exponent in fully developed turbulence

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Abstract

The two-point correlation function of the energy dissipation, obtained from a one-point time record of an atmospheric boundary layer, reveals a rigorous power law scaling with intermittency exponent μ ≈ 0.20 over almost the entire inertial range of scales. However, for the related integral moment, the power law scaling is restricted to the upper part of the inertial range only. This observation is explained in terms of the operational surrogacy of the construction of energy dissipation, which influences the behaviour of the correlation function for small separation distances.

Original language	English (US)
Pages (from-to)	756-761
Number of pages	6
Journal	Europhysics Letters
Volume	61
Issue number	6
DOIs	https://doi.org/10.1209/epl/i2003-00298-x
State	Published - Mar 2003

ASJC Scopus subject areas

General Physics and Astronomy

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abstract = "The two-point correlation function of the energy dissipation, obtained from a one-point time record of an atmospheric boundary layer, reveals a rigorous power law scaling with intermittency exponent μ ≈ 0.20 over almost the entire inertial range of scales. However, for the related integral moment, the power law scaling is restricted to the upper part of the inertial range only. This observation is explained in terms of the operational surrogacy of the construction of energy dissipation, which influences the behaviour of the correlation function for small separation distances.",

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AB - The two-point correlation function of the energy dissipation, obtained from a one-point time record of an atmospheric boundary layer, reveals a rigorous power law scaling with intermittency exponent μ ≈ 0.20 over almost the entire inertial range of scales. However, for the related integral moment, the power law scaling is restricted to the upper part of the inertial range only. This observation is explained in terms of the operational surrogacy of the construction of energy dissipation, which influences the behaviour of the correlation function for small separation distances.

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On the effects of surrogacy of energy dissipation in determining the intermittency exponent in fully developed turbulence

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