Codice MOX 70 Titolo An approximate method for solving incompressible Navier-Stokes problem with flow rate conditions Data 2005-10-28 Autore/i Veneziani, Alessandro; Vergara, Christian Link Download full text Abstract We consider the incompressible Navier-Stokes problem with flow rate boundary conditions. This problem has been investigated in [2] and [12], following a Langrage multiplier approach. This approach has the drawback of high computational costs. In this paper, we propose an approximate formulation of the problem, yielding a strong reduction of the computational cost. The error analysis shows that the error introduced by this approximate formulation is confined in a smoll region of the boundary. This is a confirmed by the numerical simulations