This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Turbine Interstage Diffuser
Annotation ability available
Sector:
Language:
English
Abstract
The incentive for use of an interstage diffuser in a free-shaft gas turbine engine is briefly examined and some pertinent published background data reviewed. Tests of two annular diffusers behind an upstream turbine show the deleterious effects of turbine exit flow nonuniformity on diffuser behavior. The flow acceleration provided by the area contraction of a power turbine nozzle located at the diffuser exit substantially improves the nature of the flow previously found to exist at the diffuser exit in the absence of the nozzle.
Authors
Topic
Citation
Amann, C., Nordenson, G., and Razinsky, E., "The Turbine Interstage Diffuser," SAE Technical Paper 710553, 1971, https://doi.org/10.4271/710553.Also In
References
- Amann C. A. Dawson D. W. “The Power Turbine and its Diffuser.” SAE Transactions 78 1969 paper 690032
- Amann C. A. Sheridan D. C. “Comparison of Some Analytical and Experimental Correlations of Axial-Flow Turbine Efficiency.” Paper 67-WA/GT-6 presented at ASME Winter Annual Meeting and Energy Systems Exposition Pittsburgh November 1967
- Sovran G. Klomp E. D. “Experimentally Determined Optimum Geometries for Rectilinear Diffusers with Rectangular, Conical or Annular Cross-Section.” “Fluid Mechanics of Internal Flow,” Sovran G. Amsterdam London New York Elsevier Publishing Co. 1967 270 319
- Reneau L. R. Johnston J. P. Kline S. J. “Performance and Design of Straight Two-Dimensional Diffusers.” Transactions of ASME, Journal of Basic Engineering March 1967 141 150
- Wolf S. Johnston J. P. “Effects of Non-Uniform Inlet Velocity Profiles on Flow Regimes and Performance in Two-Dimensional Diffusers.” Transactions of the ASME, Journal of Basic Engineering September 1969 462 474
- Klomp E. D.