Non-invariant solutions of the three-dimensional semi-empirical model of the far turbulent wake

Details Non-invariant solutions of the three-dimensional semi-empirical model of the far turbulent wake Non-invariant solutions of the three-dimensional semi-empirical model of the far turbulent wake

2009-12-15

arxiv.org/abs/0912.2890v3

Physics

Fluid Dynamics

11 pages, 3 figures

Scientific paper

A semi-empirical three-dimensional model of turbulence in the approximation of the far turbulent wake behind a body of revolution in a passive stratified medium is considered. The sought quantities are the kinetic turbulent energy, kinetic energy dissipation rate, averaged density defect and density fluctuation variance. The full group of transformations admitted by this model is found. The model is reduced to the system of the ordinary differential equations due to similarity presentations obtained and B-determining equations method. System of ordinary differential equations satisfying natural boundary conditions was solved numerically. The solutions obtained agree with experimental data.

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