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Physics-based balancing domain decomposition by constraints for multi-material problems

Author
Badia, S.; Martín, A. F.; Nguyen, H.
Type of activity
Journal article
Journal
Journal of scientific computing
Date of publication
2019-05
Volume
79
Number
2
First page
718
Last page
747
DOI
https://doi.org/10.1007/s10915-018-0870-z Open in new window
Project funding
Computational Methods for Fusion Technology (COMFUS)
Computer Aided Technologies for Additive Manufacturing - CAxMan
Efficient Manufacturing for Aerospace Components Using Additive Manufacturing, Net Shape HIP and Investment Casting - EMUSIC
Numerical Methods and Tools for Key Exascale Computing Challenges in Engineering and Applied Sciences (NUMEXAS)
Repository
http://hdl.handle.net/2117/124734 Open in new window
https://hal.archives-ouvertes.fr/hal-01337968 Open in new window
URL
https://link.springer.com/article/10.1007%2Fs10915-018-0870-z Open in new window
Abstract
In this work, we present a new variant of the balancing domain decomposition by constraints preconditioner that is robust for multi-material problems. We start with a well-balanced subdomain partition, and based on an aggregation of elements according to their physical coefficients, we end up with a finer physics-based (PB) subdomain partition. Next, we define corners, edges, and faces for this PB partition, and select some of them to enforce subdomain continuity (primal faces/edges/corners). Wh...
Citation
Badia, S., Martín, A. F., Nguyen, H. Physics-based balancing domain decomposition by constraints for multi-material problems. "Journal of scientific computing", Maig 2019, vol. 79, núm. 2, p. 718-747.
Keywords
BDDC Multi-material problem Adaptive coarse space Parallel solver Parallel preconditioner
Group of research
(MC)2 - UPC Computational continuum mechanics
ANiComp - Numerical analysis and scientific computation

Participants