Print Email Facebook Twitter Convergence Acceleration for the Three Dimensional Compressible Navier-Stokes Equations Part of: ECCOMAS CFD 2006: Proceedings of the European Conference on Computational Fluid Dynamics· list the conference papers Title Convergence Acceleration for the Three Dimensional Compressible Navier-Stokes Equations Author Turkel, E. Vatsa, V.N. Swanson, R.C. Rossow, C.C. Date 2006-09-06 Abstract We consider a multistage algorithm to advance in pseudo-time to find a steady state solution for the compressible Navier-Stokes equations. The rate of convergence to the steady state is improved by using an implicit preconditioner to approximate the numerical scheme. This properly addresses the stiffness in the discrete equations associated with highly stretched meshes. Hence, the implicit operator allows large time steps i.e. CFL numbers of the order of 1000. The proposed method is applied to three dimensional cases of viscous, turbulent flow around a wing, achieving dramatically improved convergence rates. Subject Navier-StokesCFDpreconditioningacceleration To reference this document use: http://resolver.tudelft.nl/uuid:c23c3d80-92c3-451e-a120-44015fc5b002 Part of collection Conference proceedings Document type conference paper Rights (c) 2006 Turkel, E.; Vatsa, V.N.; Swanson, R.C.; Rossow, C.C. Files PDF Turkel.pdf 188.59 KB Close viewer /islandora/object/uuid:c23c3d80-92c3-451e-a120-44015fc5b002/datastream/OBJ/view