Experimental evaluation of an inlet profile generator for high pressure turbine tests

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    8 Scopus citations

    Abstract

    Improving the performance and durability of gas turbine aircraft engines depends highly on achieving a better understanding of the flow interactions between the combustor and turbine sections. The flow exiting the combustor is very complex and it is characterized primarily by elevated turbulence and large variations in temperature and pressure. The heat transfer and aerodynamic losses that occur in the turbine passages are driven primarily by these spatial variations. To better understand these effects, the goal of this work is to benchmark an adjustable turbine inlet profile generator for the Turbine Research Facility (TRF) at the Air Force Research Laboratory (AFRL). The research objective was to experimentally evaluate the performance of the non-reacting simulator that was designed to provide representative combustor exit profiles to the inlet of the TRF turbine test section. This paper discusses the verification testing that was completed to benchmark the performance of the generator. Results are presented in the form of temperature and pressure profiles as well as turbulence intensity and length scale. This study shows how one combustor geometry can produce significantly different flow and thermal field conditions entering the turbine. Engine designers should place emphasis on obtaining accurate knowledge of the flow distribution within the combustion chamber as this can result in significantly different inlet profiles to the turbine that can change local aerodynamics and heat transfer within the turbine.

    Original languageEnglish (US)
    Title of host publicationProceedings of the ASME Turbo Expo 2006 - Power for Land, Sea, and Air
    Pages447-458
    Number of pages12
    DOIs
    StatePublished - Nov 15 2006
    Event2006 ASME 51st Turbo Expo - Barcelona, Spain
    Duration: May 6 2006May 11 2006

    Publication series

    NameProceedings of the ASME Turbo Expo
    Volume3 PART A

    Other

    Other2006 ASME 51st Turbo Expo
    CountrySpain
    CityBarcelona
    Period5/6/065/11/06

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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