Agglomeration Multigrid for the Vertex-Centered Dual Discontinuous Galerkin Method

  • Sven-Erik Ekström
  • Martin Berggren
Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 113)


Agglomoration multigrid is used in many finite-volume codes for aerodynamic computations in order to reduce solution times. We show that an existing agglomeration multigrid solver developed for equations discretized with a vertex-centered, edge-based finite-volume scheme can be extended to accelerate convergence also for a vertex-centered discontinuous Galerkin method. Preliminary results for a subsonic as well as a transonic test case for the Euler equations in two space dimensions show a significant convergence acceleration for the discontinuous Galerkin equations using the agglomoration multigrid strategy.


Coarse Mesh Discontinuous Galerkin Discontinuous Galerkin Method Mesh Level Convergence Acceleration 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Sven-Erik Ekström
    • 1
  • Martin Berggren
    • 2
  1. 1.Department of Information TechnologyUppsala UniversityUppsalaSweden
  2. 2.Department of Computing ScienceUmeå UniversityUmeåSweden

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