Abstract & Overview
We consider a finite volume scheme for Stokes problem based on the rotated Q 1 nonconforming finite element method. By examining the relationship beteween finite volume element and finite element approximations, an error estimate of optimal order in the H 1 -norm for velocity and an estimate in the L 2 -norm for pressure are obtained. An optimal error estimate in the L 2 -norm for the velocity is derived under an additional assumption on the body force