Název: Model order reduction technique for large scale flow computations
Autoři: Isoz, Martin
Typ dokumentu: Příspěvky z konference
Konference/Akce: Conference TOPICAL PROBLEMS OF FLUID MECHANICS 2018, Praha (CZ), 20180221
Rok: 2018
Jazyk: eng
Abstrakt: Current progress in numerical methods and available computational power combined with industrial needs promote the development of more and more complex models. However, such models are, due to their complexity, expensive from the point of view of the data storage and the time necessary for their evaluation. The model order reduction (MOR) seeks to reduce the computational complexity of large scale models. We present an application of MOR to the problems originating in the finite volume (FV) discretization of incompressible Navier-Stokes equations. Our approach to MOR is based on the proper orthogonal decomposition (POD)\nwith Galerkin projection. Moreover, the problems arising from the nonlinearities present in the original model are adressed within the framework of the discrete empirical interpolation method (DEIM). We provide a link between the POD-DEIM based MOR and OpenFOAM, which is an open-source CFD toolbox capable of solving even industrial scale problems. The availability of a link between OpenFOAM and POD-DEIM based MOR enables a direct order reduction for large scale systems originating in the industrial practice.
Klíčová slova: computational fluid dynamics; discrete empirical interpolation method; OpenFOAM; proper orthogonal decomposition
Číslo projektu: EF15_003/0000493
Poskytovatel projektu: GA MŠk
Zdrojový dokument: Topical problem of Fluid Mechanics 2018, ISBN 978-80-87012-65-9, ISSN 2336-5781

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na externích webových stránkách.
Externí umístění souboru: http://www.it.cas.cz/fm2015/im/admin/showfile/data/my/Papers/2018/20-TPFM2018.pdf
Původní záznam: http://hdl.handle.net/11104/0292285

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-391533


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Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference