Název:
The effect of irregular interfaces on the BDDC method for the Navier-Stokes equations
Autoři:
Hanek, M. ; Šístek, Jakub ; Burda, P. Typ dokumentu: Příspěvky z konference Konference/Akce: 23rd International Conference on Domain Decomposition Methods (DD23), Jeju Island (KR), 20150706
Rok:
2017
Jazyk:
eng
Abstrakt: We investigate the effect of interface irregularity on the convergence of the BDDC method for Navier-Stokes equations. A benchmark problem of a sequence of contracting channels is proposed to evaluate the robustness of the iterative solver with respect to element aspect ratios at the interface. Partitioners based on graph of the mesh and the geometry of the domain are compared. It is shown, that the convergence is significantly improved by avoiding irregular interfaces for the benchmark problem as well as for an industrial problem of oil flow in hydrostatic bearing.
Klíčová slova:
domain decomposition methods; hydrostatic bearings; Navier Stokes equations Číslo projektu: GA14-02067S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Domain Decomposition Methods in Science and Engineering XXIII, ISBN 978-3-319-52388-0, ISSN 1439-7358 Poznámka: Související webová stránka: http://link.springer.com/chapter/10.1007%2F978-3-319-52389-7_16
Instituce: Matematický ústav AV ČR
(web)
Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0270960