The complexity of modern gas turbine engines has led to the adoption of a modular design approach, in which a conceptual design phase fixes the values for a number of parameters and dimensions in order to facilitate the subdivision of the overall task into a number of simpler design problems. While making the overall problem more tractable, the introduction of these process-intrinsic constraints (such as flow areas and radii between adjacent stages) at a very early phase of the design process can limit the level of performance achievable, neglecting important regions of the design space and concealing important trade-offs between different modules or disciplines. While this approach has worked satisfactorily in the past, the continuous increase in components’ efficiencies and performance makes further advances more difficult to achieve. Part I of this paper described the development of a system for the integrated design optimization of gas turbine engines: postponing the setting of the interface constraints to a point where more information is available facilitates better exploration of the available design space and better exploitation of the trade-offs between different disciplines and modules. In this second part of the paper, the proposed approach is applied to several test cases from the design of a three-spool gas turbine engine core compression system, demonstrating the risks associated with a modular design approach and the consistent gains achievable through the proposed integrated optimization approach.
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January 2011
Research Papers
An Integrated System for the Aerodynamic Design of Compression Systems—Part II: Application
Tiziano Ghisu,
Tiziano Ghisu
Engineering Design Centre, Department of Engineering,
e-mail: tg269@cam.ac.uk
University of Cambridge
, Trumpington Street, Cambridge, Cambridgeshire, CB2 1PZ, UK
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Geoffrey T. Parks,
Geoffrey T. Parks
Engineering Design Centre, Department of Engineering,
University of Cambridge
, Trumpington Street, Cambridge, Cambridgeshire, CB2 1PZ, UK
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Jerome P. Jarrett,
Jerome P. Jarrett
Engineering Design Centre, Department of Engineering,
University of Cambridge
, Trumpington Street, Cambridge, Cambridgeshire, CB2 1PZ, UK
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P. John Clarkson
P. John Clarkson
Engineering Design Centre, Department of Engineering,
University of Cambridge
, Trumpington Street, Cambridge, Cambridgeshire, CB2 1PZ, UK
Search for other works by this author on:
Tiziano Ghisu
Engineering Design Centre, Department of Engineering,
University of Cambridge
, Trumpington Street, Cambridge, Cambridgeshire, CB2 1PZ, UKe-mail: tg269@cam.ac.uk
Geoffrey T. Parks
Engineering Design Centre, Department of Engineering,
University of Cambridge
, Trumpington Street, Cambridge, Cambridgeshire, CB2 1PZ, UK
Jerome P. Jarrett
Engineering Design Centre, Department of Engineering,
University of Cambridge
, Trumpington Street, Cambridge, Cambridgeshire, CB2 1PZ, UK
P. John Clarkson
Engineering Design Centre, Department of Engineering,
University of Cambridge
, Trumpington Street, Cambridge, Cambridgeshire, CB2 1PZ, UKJ. Turbomach. Jan 2011, 133(1): 011012 (8 pages)
Published Online: September 21, 2010
Article history
Received:
January 10, 2009
Revised:
July 21, 2009
Online:
September 21, 2010
Published:
September 21, 2010
Connected Content
A companion article has been published:
An Integrated System for the Aerodynamic Design of Compression Systems—Part I: Development
Citation
Ghisu, T., Parks, G. T., Jarrett, J. P., and Clarkson, P. J. (September 21, 2010). "An Integrated System for the Aerodynamic Design of Compression Systems—Part II: Application." ASME. J. Turbomach. January 2011; 133(1): 011012. https://doi.org/10.1115/1.4000535
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