Multi-fidelity design optimisation of a transonic compressor rotor


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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Description/Abstract

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.

Item Type: Conference or Workshop Item (Paper)
Venue - Dates: 9th European Conf. Turbomachinery Fluid Dynamics and Thermodynamics, Turkey, 2011-03-21 - 2011-03-25
Subjects:
Organisations: Computational Engineering & Design Group
ePrint ID: 198559
Date :
Date Event
21 March 2011Published
Date Deposited: 05 Oct 2011 09:03
Last Modified: 18 Apr 2017 01:30
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/198559

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