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Experimental Evaluation of the Flow-Field in a State of the Art Linear Cascade With Boundary-Layer Suction

[+] Author Affiliations
Johan Hjärne, Valery Chernoray, Lennart Löfdahl

Chalmers University of Technology, Gothenburg, Sweden

Jonas Larsson

Volvo Aero Corporation, Trollhättan, Sweden

Paper No. GT2005-68399, pp. 553-560; 8 pages
doi:10.1115/GT2005-68399
From:
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 6: Turbo Expo 2005, Parts A and B
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4730-6 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME

abstract

This paper presents a detailed experimental evaluation of the flow field in a state of the art linear cascade with boundary-layer suction. The linear cascade was designed using a new design-process as described by Hjärne et al. [1]. From the measurements presented in this paper it can be concluded that all of the features of the test-rig work as expected. Hence the measurements validate the design process presented by Hjärne et al. in [1]. The intention with the test facility is to provide high quality benchmark cases for the flow field around aggressive designs of Low Pressure Turbine/Outlet Guide Vanes (LPT/OGV’s) to be used for validation of numerical codes. The flow quality is assessed by measuring inlet uniformity, boundary-layer heights, periodicity of the static pressure distribution around the OGV’s and uniformity of the outlet flow.

Copyright © 2005 by ASME

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