A parallel multigrid algorithm for solving the Navier-Stokes equations on a transputer system

We consider the numerical solution of the stationary incompressible Navier-Stokes equations for a wide range of Reynolds numbers by a nonconforming finite element discretization of upwind type. For solving the discrete systems of equations within an outer nonlinear iteration we propose an efficient and robust multigrid algorithm which admits a slightly modified parallel version with nearly the same good properties. We study the parallel efficiency for an implementation on a transputer system when changing the number of employed processors and the number of used grid levels. (orig.)SIGLEAvailable from TIB Hannover: RN 7349(699) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman