Descripción
|
|
---|---|
A local proper orthogonal decomposition (POD) plus Galerkin projection method was re- cently developed to accelerate time dependent numerical solvers of PDEs. Such a method is based on the combined use of a numerical code (NC) and a Galerkin system (GS) in a sequence of interspersed time intervals, INC and IGS, respectively. POD modes result from per- forming POD on some sets of snapshots calculated by the numerical solver in the INC intervals. Indeed, the POD manifold is completely calculated in the ¯rst INC interval but only updated in subsequent INC intervals, which can thus be quite small. The governing equations are Galerkin projected onto the most energetic POD modes and the resulting GS is time integrated in the next IGS interval. Switching between intervals is done by using an a priori error estimate. The method was seen to be both robust and computationally eficient | |
Internacional
|
Si |
Nombre congreso
|
Coupled problems 2011 |
Tipo de participación
|
960 |
Lugar del congreso
|
Kos Island, Grecia |
Revisores
|
Si |
ISBN o ISSN
|
978-84-89925-78-6 |
DOI
|
|
Fecha inicio congreso
|
20/06/2011 |
Fecha fin congreso
|
22/06/2011 |
Desde la página
|
861 |
Hasta la página
|
873 |
Título de las actas
|
Computational Methods for Coupled Problems in Science and Engineering IV. M. Papadrakis, E. Oñate and B. Schrefler Eds. |