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    Inertial- and Dissipation-Range Asymptotics in Fluid Turbulence

    Sujan K. Dhar, Anirban Sain, and Rahul Pandit

    • Department of Physics, Indian Institute of Science, Bangalore 560 012, India

    Phys. Rev. Lett. 78, 2964 – Published 14 April, 1997

    DOI: https://doi.org/10.1103/PhysRevLett.78.2964

    Abstract

    We propose and verify a wave-vector-space version of generalized extended self-similarity [R. Benzi et al., Europhys. Lett. 32, 709 (1995)] and broaden its applicability to uncover intriguing, universal scaling in the far dissipation range by computing high-order ( ≤20) structure functions numerically for (1) the three-dimensional, incompressible Navier-Stokes equation (with and without hyperviscosity) and (2) the Gledzer-Ohkitani-Yamada shell model for turbulence. Also, in case (2), with Taylor-microscale Reynolds numbers 4×104≤Reλ≤3×106, we find that the inertial-range exponents ( ζp) of the order- p structure functions do not approach their Kolmogorov value p/3 as Reλ increases.

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