CONSISTENT FINITE-ELEMENT CALCULATIONS OF BOUNDARY AND INTERNAL FLUXES

The purpose of this paper is to develop a consistent method to calcula te the fluxes or the stresses in an incompressible flow, particularly a turbulent flow. A post-processing technique has been developed such that fluxes or stresses are treated as unknown values, which are solve d for, weakly, using the finite element method, The method has been ap plied to calculate the Reynolds stresses in a turbulent channel flow, As a result of the new consistent method, the Reynolds stresses have s hown good agreement with the DNS data confirming the momentum conserva tion of the finite element method.