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A Variable-Fidelity Modeling Method for Aero-Loads Prediction

Han, Zhong-Hua and Görtz, Stefan and Hain, Rainer (2008) A Variable-Fidelity Modeling Method for Aero-Loads Prediction. AG STAB Symposium 2008, 3-4 Nov, 2008, Aachen.

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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

Document Type:Conference or Workshop Item (Lecture, Paper)
Title:A Variable-Fidelity Modeling Method for Aero-Loads Prediction
Authors:
AuthorsInstitution or Email of Authors
Han, Zhong-HuaZhong-Hua.Han@dlr.de
Görtz, StefanStefan.Goertz@dlr.de
Hain, RainerRainer.Hain@dlr.de
Date:November 2008
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:Variable-fidelity modeling, date fusion, kriging, bridge function
Event Title:AG STAB Symposium 2008
Event Location:Aachen
Event Type:national Conference
Event Dates:3-4 Nov, 2008
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Bremen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Dr. Zhong-hua Han
Deposited On:26 Nov 2009 11:25
Last Modified:12 Dec 2013 20:45

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