On the ERG approach in 3 - d Well Developed Turbulence
Abstract
We apply the method of the Renormalization Group (GR), following the Polchinski point of view, to a model of well developed and isotropic fluid turbulence. The Galilei-invariance is preserved and a universal behavior, related to the change of the stochastic stirring force, is evident by the numerical results in the inertial region, where a scale-invariant behavior also appear. The expected power law of the energy spectrum (q-5 3) is obtained and the Kolmogorov constant CK agrees with experimental data.
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