A.D. Polyanin, S.N. Aristov. Equations of hydrodynamic type: exact solutions, reduction of order, transformations, and nonlinear stability/unstability


Natural Sciences / Physics / Mathematical Physics

Submitted on: Jul 15, 2012, 07:01:21

Description: Systems of hydrodynamic type equations derived from the Navier-Stokes equations and the boundary layer equations are considered. A transformation of the Crocco type reducing the equation order for the longitudinal velocity component is described. The issues of nonlinear stability of the obtained solutions are studied. It is found that a specific feature of many solutions of the Navier-Stokes equations is instability. The nonlinear instability of solutions is proved by a new exact method, which may be useful for the analysis of other nonlinear physical models and phenomena.

The abstract of this article has been published in the "Intellectual Archive Bulletin" , July 2012, ISSN 1929-1329.

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