Error estimates of a two-grid penalty finite element method for the
Smagorinsky model
Abstract
In the paper, we consider the penalty finite element methods (FEMs) for
the stationary Smagorinsky model. Firstly, a one-grid penalty FEM is
proposed and analyzed. Since this method is nonlinear, a novel
linearized iteration scheme is derived for solving it. We also derived
the stability and convergence of numerical solutions for this iteration
scheme. Furthermore, a two-grid penalty FEM is developed for Smagorinsky
model. Under $\varepsilon<