On 2-level Schwarz Algorithms for LES compressible flows

Hubert Alcin Alain Dervieux (INRIA, BP93, 06902 Sophia-Antipolis, France) Olivier Allain (LEMMA S.A., Sophia-Antipolis, France) Bruno Koobus (Université de Montpellier)

Proceedings of Par-CFD, Atlanta, 2012

Abstract: Deflation methods are particularly interesting for building coarse grids in massively parallel domain decomposition algorithms. This is demonstrated for incompressible flows in which the scalar projection phase solved by a Schwarz method becomes scalable when deflation is introduced. The case of compressible models is addressed in combination with the Restrictive Additive Schwarz algorithm (RAS) and its efficiency demonstrated.

Long abstract (pdf)


@inproceedings{AKAD12p,
  author = {Alcin, H. and Koobus, B. and Allain, O. and Dervieux, A.},
  title = {On 2-level {S}chwarz Algorithms for {LES} compressible flows},
  booktitle = "Proceedings of Par-CFD",
  location = "Atlanta, Georgia",
  year = 2012
}