Memorias de investigación
Ponencias en congresos:
Mixing Snapshots and Fast Time Integration of PDEs
Año:2011
Áreas de investigación
  • Ingeniería aeronaútica
Datos
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.
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
  • Departamento: Fundamentos Matemáticos de la Tecnología Aeronáutica