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The Investigation of Turbine and Exhaust Interactions in Asymmetric Flows: Part 2 — Turbine-Diffuser-Collector Interactions

[+] Author Affiliations
J. J. Liu, T. P. Hynes

University of Cambridge, Cambridge, UK

Paper No. GT2002-30343, pp. 179-188; 10 pages
doi:10.1115/GT2002-30343
From:
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 5: Turbo Expo 2002, Parts A and B
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3610-X | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME

abstract

Part 2 of this paper describes the investigation of steam turbine and exhaust hood interactions in asymmetric flows by using a multiblock multigrid 3D Navier–Stokes solver incorporating an actuator disc model. The interactions among the turbine, diffuser and collector are analyzed by using a flow model. Numerical simulations for two exhaust hoods are performed to understand the flow details and to verify the flow model analysis. Based on the understanding of turbine and exhaust interactions, suggestions for the design of efficient exhaust systems are given.

Copyright © 2002 by ASME

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