A new Eulerian theory of turbulence constrained by random Galilean invariance

Autor:	Pandya, R. V. R.
Rok vydání:	2013
Předmět:	Mathematical Physics Condensed Matter - Statistical Mechanics Nonlinear Sciences - Chaotic Dynamics Physics - Fluid Dynamics
Druh dokumentu:	Working Paper
Popis:	We propose a new Eulerian turbulence theory to obtain a closed set of equations for homogeneous, isotropic turbulent velocity field correlations and propagator functions by incorporating constraints of random Galilean invariance. This incorporation generates a few different equations for propagator and the present theory suggests a way to utilize them into the closure solutions of two-time and single-time velocity correlations' equations so as to properly account for random sweeping phenomena. The present theory yields exact solutions when applied to simple model problem of random oscillator. Comment: 16 pages, submitted on July 8, 2013
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1307.2324 Zobrazit plný text záznamu View this record from Arxiv