Multigrid Solver Algorithms for DG Methods and Applications to Aerodynamic Flows

作者: M. Wallraff , R. Hartmann , T. Leicht

DOI: 10.1007/978-3-319-12886-3_9

关键词:

摘要: In this chapter we collect results obtained within the IDIHOM project on development of Discontinuous Galerkin (DG) methods and their application to aerodynamic flows. particular, present an multigrid algorithms a higher order DG discretization Reynolds-averaged Navier-Stokes (RANS) equations in combination with Spalart-Allmaras as well Wilcox-kω turbulence model. Based either lower discretizations or agglomerated coarse meshes resulting solver are characterized p- h-multigrid, respectively. Linear nonlinear applied test cases, namely theL1T2 high lift configuration deltawing second Vortex Flow Experiment (VFE-2) rounded leading edge. All presented compared strongly implicit single grid terms number iterations computing time. Furthermore, combined adaptive mesh refinement, residual-based adjoint-based refinement. These subsonic transonic flow around VFE-2 delta wing.

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