A Comparison Study Between the Projection 1 and Projection 2 Method

In this paper, the projection 1 and the projection 2 method for decoupling the two dimensional incompressible Nervier Stokes equations are compared by two typical flows. It shown that these two methods produced almost identical velocity fields, the difference between these two decoupling methods is very small, but the numerical experiments results that the projection 1 method needs a little more CPU time than the projection 2 method, therefore the last one is preferred to use.