Upper semicontinuity of trajectory attractors of 3D Navier-Stokes equations with hyperviscosity.
Résumé
We regularized the 3D Navier-Stokes equations by adding a fourth-order viscosity term. We study the upper semicontinuity, of the global attractors of the Leray-Hopf weak solutions of the regularized 3D Navier-Stokes equations, as the artificial dissipation goes to 0, and the regularized problem (see equation (1.1)) limits to the standard 3D Navier-Stokes equations. We also consider applications of obtained results to the regularized problem by allowing the family of forcing functions to vary with epsilon, for epsilon >0.
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