DEVELOPMENT OF PROJECTION AND ARTIFICIAL COMPRESSIBILITY METHODOLOGIES USING THE APPROXIMATE FACTORIZATION TECHNIQUE

Predictions for two-dimensional, steady, incompressible flows under bo th laminar and turbulent conditions are presented. The standard k-epsi lon turbulence model is used for the turbulent flows. The computationa l method is based on the approximate factorization technique. The coup led approach is used to link the equations of motion and the turbulenc e model equations. Mass conservation is enforced by either the pseudoc ompressibility method or the pressure correction method. Comparison of the two methods shows a superiority of the pressure correction method . Second- and fourth-order artificial dissipation terms are used in or der to achieve good convergence and to handle the turbulence model equ ations efficiently. Several internal and external test cases are inves tigated, including attached and separated flows.