Han, Zhong-Hua und Görtz, Stefan und Zimmermann, Ralf (2009) On Improving Efficiency and Accuracy of Variable-Fidelity Surrogate Modeling in Aero-data for Loads Context. CEAS 2009 European Air and Space conference, 2009-10-26 - 2009-10-29, Manchester, UK.
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Kurzfassung
Variable-fidelity surrogate modeling offers an efficient way to generate aerodynamic data for aero-loads prediction based on a set of CFD methods with varying degree of fidelity and computational expense. In this paper, new algorithms, such as a Gradient-Enhanced Kriging method (direct GEK) and a generalized hybrid bridge function, have been developed to improve the efficiency and accuracy of the existing Variable-Fidelity Modeling (VFM) approach. These new algorithms and features are demonstrated and evaluated for analytical functions and used to construct a global surrogate model for the aerodynamic coefficients and drag polar of an RAE 2822 airfoil. It is preliminarily shown in this paper that they are very promising and can be used to significantly improve the efficiency and accuracy of VFM in the context of aero-loads prediction.
elib-URL des Eintrags: | https://elib.dlr.de/60864/ | ||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vorlesung, Paper) | ||||||||||||||||
Titel: | On Improving Efficiency and Accuracy of Variable-Fidelity Surrogate Modeling in Aero-data for Loads Context | ||||||||||||||||
Autoren: |
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Datum: | Oktober 2009 | ||||||||||||||||
Referierte Publikation: | Nein | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Variable-fidelity modeling,kriging, gradient-enhanced kriging hybrid bridge function | ||||||||||||||||
Veranstaltungstitel: | CEAS 2009 European Air and Space conference | ||||||||||||||||
Veranstaltungsort: | Manchester, UK | ||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
Veranstaltungsbeginn: | 26 Oktober 2009 | ||||||||||||||||
Veranstaltungsende: | 29 Oktober 2009 | ||||||||||||||||
Veranstalter : | The Royal Aeronautical Society of UK | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||
HGF - Programmthema: | Starrflügler (alt) | ||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Flugphysik (alt) | ||||||||||||||||
Standort: | Braunschweig | ||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik | ||||||||||||||||
Hinterlegt von: | Han, Dr. Zhong-hua | ||||||||||||||||
Hinterlegt am: | 26 Nov 2009 11:04 | ||||||||||||||||
Letzte Änderung: | 24 Apr 2024 19:25 |
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