A posteriori error estimators for the fully discrete time dependent stokes problem with some different boundary conditions.

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Abstract : In this paper we study the time dependent Stokes problem with some different boundary conditions. We establish a decoupled variational formulation into a system of velocity and a Poisson equation for the pressure. Hence, the velocity is approximated with curl conforming finite elements in space and Euler scheme in time and the pressure with standard continuous elements in space and Euler scheme in time. Finally, we establish optimal a priori and a posteriori estimates.

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Keywords : Partial differential equations; A piori and a posteriori errors; Time dependent Stokes equations.

Date: 2009-12-8