Abstract
Properties of the PISO and SIMPLE algorithms of solution of momentum equations are examined by comparison of the computational effort required for reaching the same convergence criterion in two test problems. In the present paper swirling and non-swirling flows are considered in axisymmetric geometry. In the computations both, interative and time marching versions of these methods are considered. Optimal values of numerical parameters, on which effectivity of both algorithms depends for various differential grids, were found and the results for swirling flow problem were verified on the basis of available experimental data.
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