BERGMANN, Michel; BRUNEAU, Charles-Henri; IOLLO, Angelo

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Licencia de uso del documento

BERGMANN, Michel
Institut de Mathématiques de Bordeaux [IMB]
Modélisation, contrôle et calcul [MC2]

BRUNEAU, Charles-Henri
Institut de Mathématiques de Bordeaux [IMB]
Modélisation, contrôle et calcul [MC2]

IOLLO, Angelo
Institut de Mathématiques de Bordeaux [IMB]
Modélisation, contrôle et calcul [MC2]

Idioma

Communication dans un congrès

Este ítem está publicado en

The Fifth International Conference on Computational Fluid Dynamics, 2008-07, Séoul. 2008

Resumen en inglés

This study focuses on stabilizing Reduced Order Model based on Proper Orthogonal Decomposition (POD) and on improving the POD functional subspace. A modified reduced order model (ROM) that incorporates directly the pressure term is proposed. The ROM is obtained by seeking a solution that lives in the POD subspace and at the same time minimizes the Navier-Stokes residuals. Both ROM stabilization and POD subspace adaptation make use of methods based on the fine scale equation that is approximated using the residuals of the Navier-Sokes equations. Results are shown for the 2D confined cylinder wake flow.< Leer menos

Palabras clave en inglés

Proper Orthogonal Decomposition

Reduced Order Model

Stabilization

Functional space adaptation

Orígen

Importado de Hal

Centros de investigación

Institut de Mathématiques de Bordeaux (IMB) - UMR 5251