Convergence Analysis for a Finite Element Approximation of a Steady Model for Electrorheological Fluids
Provides theoretical convergence guarantees for numerical simulation of electrorheological fluids, an incremental contribution to computational rheology.
The paper derives error estimates for finite element approximations of p(x)-Stokes systems modeling electrorheological fluids, achieving optimal rates in some cases.
In this paper we study the finite element approximation of systems of $p(\cdot)$-Stokes type, where $p(\cdot)$ is a (non constant) given function of the space variables. We derive --in some cases optimal-- error estimates for finite element approximation of the velocity and of the pressure, in a suitable functional setting.