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A Variable-Fidelity Modeling Method for Aero-Loads Prediction

Han, Zhong-Hua and Görtz, Stefan and Hain, R. (2010) A Variable-Fidelity Modeling Method for Aero-Loads Prediction. In: New Results in Numerical and Experimental Fluid Mechanics VII Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 112. Springer Verlag. pp. 17-25. ISBN 978-3-642-14242-0. ISSN 1612-2909

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Abstract

A Variable-Fidelity Modeling (VFM) method has been developed as an efficient and accurate aerodynamic data modeling strategy. In this approach, a set of CFD methods with varying degrees of fidelity and computational expense is exercised to reduce the number of expensive high-fidelity computations. Kriging-based bridge functions are constructed to match the low- and high fidelity CFD data. The method is demonstrated by constructing a global approximation model of the aerodynamic coefficients of an RAE 2822 airfoil based on sampled data. The model is adaptively refined by inserting additional samples. It is shown that the method is promising for efficiently generating accurate aerodynamic models that can be used for the rapid prediction of aerodynamic data across the flight envelope.

Item URL in elib:https://elib.dlr.de/95430/
Document Type:Contribution to a Collection
Title:A Variable-Fidelity Modeling Method for Aero-Loads Prediction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Han, Zhong-HuaZhong-Hua.Han (at) dlr.deUNSPECIFIED
Görtz, StefanStefan.Goertz (at) dlr.deUNSPECIFIED
Hain, R.UNSPECIFIEDUNSPECIFIED
Date:2010
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics VII
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:112
Page Range:pp. 17-25
Editors:
EditorsEmail
Dillmann, AndreasDLR
Heller, GerdAirbus Deutschland
Klaas, MichaelRWTH Aachen
Kreplin, Hans-PeterDLR
Nitsche, WolfgangTU Berlin
Schröder, WolfgangRWTH Aachen
Publisher:Springer Verlag
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-642-14242-0
Status:Published
Keywords:Variable-Fidelity Modeling, CFD, Euler, RANS, low-fidelity, high-fidelity, Kriging, bridge function
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Seyfried, Beate
Deposited On:25 Feb 2015 12:07
Last Modified:27 Feb 2015 12:22

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