The results of a three-dimensional (3D) viscous flutter analysis for a compressor stage, Standard Configuration 10, are presented. The unsteady flow simulations were performed by a 3D linearized Navier-Stokes flow solver using the Spalart and Allmaras turbulence model. Significant flow blockage due to corner separation at the hub on the suction surface was predicted by the steady-state 3D viscous simulation at a design condition. Corner separation was not predicted by 3D inviscid or two-dimensional (2D) viscous simulations. The corner separation was found to have a destabilizing effect and changed the nature of the unsteady flow. In fact, the 3D viscous simulations predicted negative aerodynamic damping for almost half of the inter-blade phase angles, while the 2D and 3D inviscid simulations predicted stable positive aerodynamic damping for all inter-blade phase angles. An off-design flow condition was also examined and significant differences between the 2D and 3D viscous simulations were found.
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ASME Turbo Expo 2007: Power for Land, Sea, and Air
May 14–17, 2007
Montreal, Canada
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
0-7918-4794-2
PROCEEDINGS PAPER
Three-Dimensional Viscous Flutter Analysis of Standard Configuration 10 Available to Purchase
Paul J. Petrie-Repar,
Paul J. Petrie-Repar
RPMTurbo, Ashgrove, QLD, Australia
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Andrew McGhee,
Andrew McGhee
RPMTurbo, Ashgrove, QLD, Australia
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Peter A. Jacobs
Peter A. Jacobs
University of Queensland, St. Lucia, QLD, Australia
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Paul J. Petrie-Repar
RPMTurbo, Ashgrove, QLD, Australia
Andrew McGhee
RPMTurbo, Ashgrove, QLD, Australia
Peter A. Jacobs
University of Queensland, St. Lucia, QLD, Australia
Paper No:
GT2007-27800, pp. 665-674; 10 pages
Published Online:
March 10, 2009
Citation
Petrie-Repar, PJ, McGhee, A, & Jacobs, PA. "Three-Dimensional Viscous Flutter Analysis of Standard Configuration 10." Proceedings of the ASME Turbo Expo 2007: Power for Land, Sea, and Air. Volume 5: Turbo Expo 2007. Montreal, Canada. May 14–17, 2007. pp. 665-674. ASME. https://doi.org/10.1115/GT2007-27800
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