PARALLEL IMPLEMENTATION FOR SOLVING THE 2-DIMENSIONAL NAVIER-STOKES EQUATIONS ON A CELL-CENTERED, UNSTRUCTURED GRID

A compressible, two-dimensional, unstructured-grid Navier-Stokes solve r has been developed for subsonic viscous flows. Pseudo-time precondit ioning is applied to improve low Mach number convergence for primitive as well as conserved variables. The scheme was implemented on a works tation and on the Ncube2s, which utilizes the multiple-instruction mul tiple-data (MIMD) approach to parallel computing. A detailed descripti on of the implementation procedure for an unstructured-grid flow solve r on a MIMD computer is given. Test cases include steady as wed as uns teady flows.