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Agglomeration multigrid for the vertex-centered dual discontinuous galerkin method
Department of Information Technology, Uppsala University.
Umeå University, Faculty of Science and Technology, Department of Computing Science. (UMIT)
2010 (English)In: ADIGMA - a European initiative on the development of adaptive higher-order variational methods for aerospace applications: Results of a collaborative research project funded by the European Union, 2006-2009 / [ed] N. Krol, H. Bieler, H. Deconinck, V. Couaillier, H. van der Ven, and K. Sørensen, Springer Berlin/Heidelberg, 2010, 301-308 p.Chapter in book (Refereed)
Abstract [en]

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.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2010. 301-308 p.
, Notes on Numerical Fluid Mechanics and Multidisciplinary Design, ISSN 1612-2909 ; 113
National Category
Computer and Information Science
URN: urn:nbn:se:umu:diva-40329DOI: 10.1007/978-3-642-03707-8_21ISI: 000281784700021ISBN: 978-3-642-03706-1ISBN: 978-3-642-03707-8OAI: diva2:399326
Available from: 2011-02-21 Created: 2011-02-21 Last updated: 2013-07-01Bibliographically approved

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Berggren, Martin
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Department of Computing Science
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