Journal
JOURNAL OF AIRCRAFT
Volume 48, Issue 5, Pages 1685-1695Publisher
AMER INST AERONAUT ASTRONAUT
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.
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