A multistage frequency domain (time-linearized/nonlinear harmonic) Navier-Stokes unsteady flow solver has been developed for predicting unsteady flows induced by bladerow interactions. In this paper, the time-linearized option of the solver has been used to analyze unsteady flows in a subsonic turbine test stage and the DLR transonic counter-rotating shrouded propfan. The numerical accuracy and computational efficiency of the time-linearized viscous methods have been demonstrated by comparing predictions with test data and nonlinear time-marching solutions for these two test cases. It is concluded that the development of efficient frequency domain approaches enables unsteady flow predictions to be used in the design cycles to tackle aeromechanics problems.
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January 2003
Technical Papers
Predicting Bladerow Interactions Using a Multistage Time-Linearized Navier-Stokes Solver
W. Ning,
W. Ning
ALSTOM Power, UK Ltd., Lincoln LN5 7FD, UK
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Y. S. Li,
Y. S. Li
ALSTOM Power, UK Ltd., Lincoln LN5 7FD, UK
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R. G. Wells
R. G. Wells
ALSTOM Power, UK Ltd., Lincoln LN5 7FD, UK
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W. Ning
ALSTOM Power, UK Ltd., Lincoln LN5 7FD, UK
Y. S. Li
ALSTOM Power, UK Ltd., Lincoln LN5 7FD, UK
R. G. Wells
ALSTOM Power, UK Ltd., Lincoln LN5 7FD, UK
Contributed by the International Gas Turbine Institute and presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Amsterdam, The Netherlands, June 3–6 2002. Manuscript received by the IGTI, January 7, 2002. Paper No. 2002-GT-30309 Review Chair: E. Benvenuti.
J. Turbomach. Jan 2003, 125(1): 25-32 (8 pages)
Published Online: January 23, 2003
Article history
Received:
January 7, 2002
Online:
January 23, 2003
Citation
Ning , W., Li , Y. S., and Wells, R. G. (January 23, 2003). "Predicting Bladerow Interactions Using a Multistage Time-Linearized Navier-Stokes Solver ." ASME. J. Turbomach. January 2003; 125(1): 25–32. https://doi.org/10.1115/1.1516570
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