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Memorias de investigación
Communications at congresses:
Mixing Snapshots and Fast Time Integration of PDEs
Year:2011
Research Areas
  • Aeronautical engineering
Information
Abstract
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
International
Si
Congress
Coupled problems 2011
960
Place
Kos Island, Grecia
Reviewers
Si
ISBN/ISSN
978-84-89925-78-6
Start Date
20/06/2011
End Date
22/06/2011
From page
861
To page
873
Computational Methods for Coupled Problems in Science and Engineering IV. M. Papadrakis, E. Oñate and B. Schrefler Eds.
Participants
  • Autor: Maria Luisa Rapun Banzo (UPM)
  • Autor: Filippo Terragni . (UPM)
  • Autor: Jose Manuel Vega De Prada (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
  • Departamento: Fundamentos Matemáticos de la Tecnología Aeronáutica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)