elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Adaptive Reduced Order Model of Aeroelastic Systems using Proper Orthogonal Decomposition

Sánchez Ortiz, Roberto Iker (2021) Adaptive Reduced Order Model of Aeroelastic Systems using Proper Orthogonal Decomposition. Masterarbeit, Universidad Politécnica de Madrid.

Dieses Archiv kann nicht den Volltext zur Verfügung stellen.

Kurzfassung

An adaptive reduced order method is considered to simulate inviscid aeroelastic scenarios for the AGARD 445.6 wing benchmark case. The method is based on Proper Orthogonal Decomposition (POD) and it is constructed using snapshots from a Computational Fluid Dynamics solver, which is coupled with a modal structural solver. The method adaptively switches between the full order model (FOM) and the reduced order model (ROM), which is decided on the fly by monitoring a residual estimate. A least-squares minimisation and a Galerkin projection have been used to evolve the ROM, both applied to a residual calculated only on a subset of cells, which significantly further reduces the computational load. The collocation method for cell selection is performed via LU decomposition. Various implementations of the method are discussed, such as the inclusion of Dual Time-Stepping terms in the ROM iterations and QR reorthogonalisation of POD modes. Results of forced motion cases and aeroelastic responses to subcritical flow conditions are presented. The outcome is an efficient and robust method with a reduction down to 11 % of the CPU time required to compute a full CFD solution.

elib-URL des Eintrags:https://elib.dlr.de/148587/
Dokumentart:Hochschulschrift (Masterarbeit)
Titel:Adaptive Reduced Order Model of Aeroelastic Systems using Proper Orthogonal Decomposition
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Sánchez Ortiz, Roberto IkerRoberto.SanchezOrtiz (at) dlr.dehttps://orcid.org/0009-0004-1945-152X170629953
Datum:2021
Referierte Publikation:Nein
Open Access:Nein
Status:veröffentlicht
Stichwörter:adaptive, reduced-order model, POD
Institution:Universidad Politécnica de Madrid
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Effizientes Luftfahrzeug
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L EV - Effizientes Luftfahrzeug
DLR - Teilgebiet (Projekt, Vorhaben):L - Virtuelles Flugzeug und Validierung
Standort: Göttingen
Institute & Einrichtungen:Institut für Aeroelastik > Aeroelastische Simulation
Hinterlegt von: Quero-Martin, David
Hinterlegt am:31 Jan 2022 14:38
Letzte Änderung:30 Okt 2024 16:13

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.