DEVELOPMENT AND APPLICATION OF A NON-STAGGERED PACE ALGORITHM FOR THESOLUTION OF INCOMPRESSIBLE NAVIER-STOKES EQUATIONS

In this study, a non-staggered PACE (Pressure Accurate Continuity Exac t) algorithm for the solution of incompressible Navier-Stokes equation s is proposed. Time accurate solutions are obtained at each time step using consistent, multi-step iterations of pressure solution and veloc ity corrections. From the computation of a square cavity flow with dif ferent Reynolds numbers, it was found that the proposed non-staggered PACE algorithm consumes less computer memory and CPU time, has a smoot her rate of convergence, and can predict incompressible flows as accur ately as a well-established staggered SIMPLER algorithm. A non-stagger ed grid algorithm is easier to implement and is more favorable as body -fitted or three-dimensional computations are required.