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Propagation of chaos for the 2D viscous vortex model. (English) Zbl 1299.76040
Since the hydrodynamics of 2D flows can be equivalently represented by Navier-Stokes (NS) equations or by the corresponding vorticity equation, it is an interesting problem to consider a dynamics of the system of $$N$$ discrete vortices fully described by their positions and circulations in the case of large $$N$$. Such a system can be considered as an equivalent for the model of stochastic particle systems, which approximates a solution for the initial NS equation. The authors intoduce the specific measures, which allow to analyse trajectory solutions in the context of the chaotic flow motions.

##### MSC:
 76D05 Navier-Stokes equations for incompressible viscous fluids 65C35 Stochastic particle methods 76M25 Other numerical methods (fluid mechanics) (MSC2010) 35Q30 Navier-Stokes equations 82C80 Numerical methods of time-dependent statistical mechanics (MSC2010)
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