Rosenbrock time integration combined with Krylov subspace enrichment for unsteady flow simulations: Unsteady aerodynamics

The GMRES algorithm has been discussed to solve the linear system Ax = b for application in a flow solver. Besides the conventional GMRES algorithm, several approaches are discussed which supposedly reduce the computational costs of the method, and reduce the number of iterations needed to satisfy the convergence criteria. GMRES is one of the...