A Flexible GMRES Scheme for Solving Euler Equations on 3D Unstructured Grid

摘要

The objective of the present study is to develop a modified implicit solver based on the Krylov subspace method with a LU decomposition preconditioner (GMRES LU-SGS) for computing Euler set of equations on unstructured grids. The prominent feature of this scheme is to use a modified form of implicit dissipation term that reduces the numerical diffusion and improves steady state convergence.