Application of extended self-similarity in turbulence

Abstract
From Navier-Stokes turbulence numerical simulations we show that for the extended self-similarity (ESS) method it is essential to take the third order structure function taken with the modulus and called D3*(r), rather than the standard third order structure function D3(r) itself. If this is done, we find ESS towards scales larger than order 10η, where η is the Kolmogorov scale. If D3(r) is used, there is no ESS. We also analyze ESS within the Batchelor parametrization of the second and third order longitudinal structure function and focus on the scaling of the transversal structure function. The Re-asymptotic inertial range scaling develops only beyond a Taylor-Reynolds number Reλ500.

This publication has 1 reference indexed in Scilit:

  • Turbulence
    Published by Cambridge University Press (CUP) ,1995