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Multi-fidelity design optimisation of a transonic compressor rotor

Record type: Conference or Workshop Item (Paper)

This paper demonstrates the application of Kriging based approximations to the aerodynamic
shape optimisation of a transonic compressor rotor where multiple ?delities of analysis are
available. An extension to the co-Kriging method is implemented, and attention is paid to the
ef?cient construction of the approximate models. The initial data sample within each level of
the model is selected using space-?lling designs, and the covariance structure of the co-Kriging
models is obtained using a maximum likelihood estimation based on gradient optimisation with
adjoint functions. An ef?cient leave-one-out cross-validation method is used to estimate model
accuracy and is used to guide initial model re?nement.

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Brooks, Christopher James, Forrester, A.I.J., Keane, A.J. and Shahpar, S. (2011) Multi-fidelity design optimisation of a transonic compressor rotor At 9th European Conf. Turbomachinery Fluid Dynamics and Thermodynamics, Turkey. 21 - 25 Mar 2011. 10 pp.

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Published date: 21 March 2011
Venue - Dates: 9th European Conf. Turbomachinery Fluid Dynamics and Thermodynamics, Turkey, 2011-03-21 - 2011-03-25
Organisations: Computational Engineering & Design Group


Local EPrints ID: 198559
PURE UUID: 881c93d2-31e8-4a17-b0ff-2cbfb4dc62ac

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Date deposited: 05 Oct 2011 09:03
Last modified: 18 Jul 2017 11:18

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Author: Christopher James Brooks
Author: A.J. Keane
Author: S. Shahpar

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