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Towards Cooled Turbine Preliminary Life Prediction via Concurrent Aerodynamic, Thermal and Material Stress Simulations on Conjugate Meshes

[+] Author Affiliations
W. N. Dawes

University of Cambridge, Cambridge, UK

W. P. Kellar, S. A. Harvey

Cambridge Flow Solutions Ltd., Cambridge, UK

Paper No. GT2010-22482, pp. 711-722; 12 pages
doi:10.1115/GT2010-22482
From:
  • ASME Turbo Expo 2010: Power for Land, Sea, and Air
  • Volume 7: Turbomachinery, Parts A, B, and C
  • Glasgow, UK, June 14–18, 2010
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4402-1 | eISBN: 978-0-7918-3872-3
  • Copyright © 2010 by ASME

abstract

An important aspect of the successful design of a cooled turbine blade is trading off performance over a range of disciplines and over a range of conflicting criteria. This in turn implies a need for a speedy & integrated analysis system. The main novelties of the present work are to show: firstly, how the aero, thermal and material stress equations can be conveniently solved on a unified mesh; and secondly, how a very simple but fully integrated process can be constructed for conjugate analysis. As an example of the potential value of this approach, some indicative life predictions for a cooled turbine blade and a shrouded rotor blade will be presented.

Copyright © 2010 by ASME

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