An implicit matrix-free Discontinuous Galerkin solver for viscous and turbulent aerodynamic simulations
作者： A. Crivellini , F. Bassi
DOI: 10.1016/J.COMPFLUID.2011.06.020
关键词: Mathematics 、 Applied mathematics 、 Test case 、 Aerodynamics 、 Solver 、 Computational fluid dynamics 、 Reynolds-averaged Navier–Stokes equations 、 Turbulence 、 Computational physics 、 Matrix (mathematics) 、 Discontinuous Galerkin method
摘要: This paper presents some recent advancements of the computational efficiency a Discontinuous Galerkin (DG) solver for Navier–Stokes (NS) and Reynolds Averaged Navier Stokes (RANS) equations. The implementation performance Newton–Krylov matrix-free (MF) method is presented compared with matrix based (MB) counterpart. Moreover two solution strategies, developed in order to increase efficiency, are discussed experimented. Numerical results test cases proposed within EU ADIGMA (Adaptive Higher-Order Variational Methods Aerodynamic Applications Industry) project demonstrate capabilities method.
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