A preconditioner for generalized saddle-point problems based on the Hermitian and Skew-Hermitian splitting (HSS) is described. The preconditioner is used with GM-RES in the solution of finite element discretizations of the steady-state Oseen (linearized Navier-Stokes) equations. The behavior of the preconditioner with respect to problem parameters like mesh size and viscosity is illustrated by means of a few numerical experi ments.
Titolo: | HSS preconditioning for the oseen problem | |
Autori: | ||
Titolo del libro: | ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering | |
Data di pubblicazione: | 2004 | |
Nome del convegno: | European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 | |
Parole Chiave: | Iterative methods; Linearized Navier-Stokes equations; Matrix splittings; Preconditioning; Artificial Intelligence; Applied Mathematics | |
Handle: | http://hdl.handle.net/11384/75312 | |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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