Inertial- and Dissipation-Range Asymptotics in Fluid Turbulence

Details Inertial- and Dissipation-Range Asymptotics in Fluid Turbulence Inertial- and Dissipation-Range Asymptotics in Fluid Turbulence

1996-05-10

arxiv.org/abs/chao-dyn/9605007v1

Nonlinear Sciences

Chaotic Dynamics

RevTeX file, with six postscript figures. epsf.tex macro is used for figure insertion. Packaged using the 'uufiles' utility

Scientific paper

10.1103/PhysRevLett.78.2964

We propose and verify a wave-vector-space version of generalized extended self similarity and broaden its applicability to uncover intriguing, universal scaling in the far dissipation range by computing high-order ($\leq 20\/$) structure functions numerically for: (1) the three-dimensional, incompressible Navier Stokes equation (with and without hyperviscosity); and (2) the GOY shell model for turbulence. Also, in case (2), with Taylor-microscale Reynolds numbers $4 \times 10^{4} \leq Re_{\lambda} \leq 3 \times 10^{6}\/$, we find that the inertial-range exponents ($\zeta_{p}\/$) of the order - $p\/$ structure functions do not approach their Kolmogorov value $p/3\/$ as $Re_{\lambda}\/$ increases.

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