Optimal L² error estimates are derived for semidiscrete and fully discrete penalty finite element methods for the 2D unsteady Navier-Stokes equations with nonsmooth initial data using backward Euler time discretization.
Fully Discrete Approximations to the Time-Dependent Navier–Stokes Equations with a Projection Method in Time an d Grad-Div Stabilization , J
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Optimal error estimates of the penalty finite element method for the unsteady Navier-Stokes equations with nonsmooth initial data
Optimal L² error estimates are derived for semidiscrete and fully discrete penalty finite element methods for the 2D unsteady Navier-Stokes equations with nonsmooth initial data using backward Euler time discretization.