MASSIVELY PARALLEL COMPUTATIONAL METHOD FOR LARGE-SCALE INCOMPRESSIBLE VISCOUS FLOW BASED ON UNSTRUCTURED GRIDS

Abstract

A parallel finite element method based on domain decomposition method is presented for large-scale computation of incompressible Navier-Stokes flow. The finite element computations, carried out using unstructured grids, are based on semi-implicit formulation. The pressure Poisson equation, which consume the most of computational time, is completely parallelized using element-by-element SCG method. The present method is shown to be a useful and powerful tool for the large-scale computation of incompressible Navier-Stokes flow.