Stochastic Shell Model: a model of anomalous scaling and non-Gaussian distribution in turbulence

Abstract

We propose a simple stochastic model of cascading transport in wave number space to clarify the origin of intermittent behavior of fully-developed fluid turbulence. In spite of lack of nonlinearity and viscosity the model gives non-Gaussian fluctuations and multifractal scalings consistent with experimental data.

4 pages, using REVTEX (Figures are inculded in text body) Replacement due to major modification of model, http://www.phys.titech.ac.jp/~tag/