Proper Orthogonal Decomposition as Surrogate Model for Aerodynamic Optimization
Joint Authors
Source
International Journal of Aerospace Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-09-18
Country of Publication
Egypt
No. of Pages
15
Abstract EN
A surrogate model based on the proper orthogonal decomposition is developed in order to enable fast and reliable evaluations of aerodynamic fields.
The proposed method is applied to subsonic turbulent flows and the proper orthogonal decomposition is based on an ensemble of high-fidelity computations.
For the construction of the ensemble, fractional and full factorial planes together with central composite design-of-experiment strategies are applied.
For the continuous representation of the projection coefficients in the parameter space, response surface methods are employed.
Three case studies are presented.
In the first case, the boundary shape of the problem is deformed and the flow past a backward facing step with variable step slope is studied.
In the second case, a two-dimensional flow past a NACA 0012 airfoil is considered and the surrogate model is constructed in the (Mach, angle of attack) parameter space.
In the last case, the aerodynamic optimization of an automotive shape is considered.
The results demonstrate how a reduced-order model based on the proper orthogonal decomposition applied to a small number of high-fidelity solutions can be used to generate aerodynamic data with good accuracy at a low cost.
American Psychological Association (APA)
Dolci, Valentina& Arina, Renzo. 2016. Proper Orthogonal Decomposition as Surrogate Model for Aerodynamic Optimization. International Journal of Aerospace Engineering،Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1105041
Modern Language Association (MLA)
Dolci, Valentina& Arina, Renzo. Proper Orthogonal Decomposition as Surrogate Model for Aerodynamic Optimization. International Journal of Aerospace Engineering No. 2016 (2016), pp.1-15.
https://search.emarefa.net/detail/BIM-1105041
American Medical Association (AMA)
Dolci, Valentina& Arina, Renzo. Proper Orthogonal Decomposition as Surrogate Model for Aerodynamic Optimization. International Journal of Aerospace Engineering. 2016. Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1105041
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1105041