Efficient multipoint aerodynamic design optimization via cokriging

Toal, David J.J. and Keane, Andy J. (2011) Efficient multipoint aerodynamic design optimization via cokriging. Journal of Aircraft, 48, (5), 1685-1695. (doi:10.2514/1.C031342).


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Multipoint objective functions are often employed within aerodynamic optimizations to prevent a reduction in offdesign performance. However, this typically results in the need for a significant number of simulations at a variety of design conditions to calculate the objective function. The following paper attempts to address this problem through the application of a multilevel cokriging model within the optimization process. A large number of single-point design simulations are augmented by a smaller number of multipoint simulations. The technique is shown to result in surrogate models as effective as those produced using a traditional multipoint process when optimizing a transonic airfoil but with a reduction in the total number of simulations

Item Type: Article
Digital Object Identifier (DOI): doi:10.2514/1.C031342
ISSNs: 0021-8669 (print)
1533-3868 (electronic)
Related URLs:
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions : Faculty of Engineering and the Environment > Aeronautics, Astronautics and Computational Engineering > Computational Engineering & Design
ePrint ID: 204251
Accepted Date and Publication Date:
1 September 2011Published
Date Deposited: 25 Nov 2011 14:14
Last Modified: 31 Mar 2016 13:47
URI: http://eprints.soton.ac.uk/id/eprint/204251

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