GMRES Acceleration Of Subiteration For Fluid-structure Interactions
Author(s)
C. Michler & E. H. van Brummelen
Abstract
GMRES acceleration of subiteration for
fluid-structure interactions
C. Michler & E. H. van Brummelen
De1jl University of Technology, Faculty of Aerospace Engineering
PO Box 5058, NL-2600 GB Deljl, The Netherlands
Abstract
The numerical solution of fluid-structure interaction problems is of great relevance
in many disciplines of engineering and science. Monolithic solution methods
for fluid-structure interaction typically employ subiteration, i.e., multiple fluidstructure
iterations. Although for certain problems the subiteration method is an
excellent solver, for other problems it converges only slowly or even diverges. In
this paper, we analyze the convergence behaviour of the subiteration method and
investigate the application of under-relaxation and GMRES acceleration in order to
improve its convergence behaviour. The Krylov acceleration constructs the search
directions from available intermediate solution vectors already calculated in the
subiterations. Therefore our proposed strategy is ch
Keywords
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