1. Global attractors and determining modes for the 3D Navier-Stokes-Voight equations.
- Author
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KALANTAROV, Varga K. and TITI, Edriss S.
- Subjects
- *
NAVIER-Stokes equations , *VISCOELASTICITY , *FLUID dynamics , *NUMERICAL analysis , *STOCHASTIC convergence - Abstract
The authors investigate the long-term dynamics of the three-dimensional Navier-Stokes-Voight model of viscoelastic incompressible fluid. Specifically, upper bounds for the number of determining modes are derived for the 3D Navier-Stokes-Voight equations and for the dimension of a global attractor of a semigroup generated by these equations. Viewed from the numerical analysis point of view the authors consider the Navier-Stokes-Voight model as a non-viscous (inviscid) regularization of the three-dimensional Navier-Stokes equations. Furthermore, it is also shown that the weak solutions of the Navier-Stokes-Voight equations converge, in the appropriate norm, to the weak solutions of the inviscid simplified Bardina model, as the viscosity coefficient ν → 0. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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