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Velocity fluctuations in forced Burgers turbulence

J. -P. Bouchaud, M. Mezard

cond-matarXiv:cond-mat/9607006

Abstract

We propose a simple method to compute the velocity difference statistics in forced Burgers turbulence in any dimension. Within a reasonnable assumption concerning the nucleation and coalescence of shocks, we find in particular that the `left' tail of the distribution decays as an inverse square power, which is compatible with numerical data. Our results are compared to those of various recent approaches: instantons, operator product expansion, replicas.

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