Presentation Details
Hybrid Additive/Multiplicative Schwarz Preconditioning for Monolithic Solvers for Surface-Coupled Multi-Physics Problems
Wednesday, 11 Oct 2017; 17:20 - 17:40 in room 7.04
In Session:
MS06-2: Computational FSI and Aero-elasticity (Show complete Mini Symposium)
Wednesday, 11 Oct 2017; 16:00 - 18:00 in room 7.04
Show complete Session
1st and presenting Author
Maximilian Noll
Department of Mechanical Engineering
Technical University of Munich
Garching, Germany
Department of Mechanical Engineering
Technical University of Munich
Garching, Germany
2nd Author
Matthias Mayr
Sandia National Laboratories
Livermore, CA, United States
Sandia National Laboratories
Livermore, CA, United States
3rd Author
Michael W. Gee
Department of Mechanical Engineering
Technical University of Munich
Garching, Germany
Department of Mechanical Engineering
Technical University of Munich
Garching, Germany
Micro Abstract:
We propose a hybrid additive/multiplicative Schwarz preconditioner for the monolithic solution of surface-coupled problems. Existing physics-based block preconditioners have proven to be very powerful but accumulate the error at the coupling surface. We address this issue by combining them with an additional additive Schwarz preconditioner, whose subdomains span across the interface on purpose. By performing cheap but accurate subdomain solves this error accumulation can be reduced efficiently.