Detailed boundary layer measurements on a turbine stator vane at elevated freestream turbulence levels

R. W. Radomsky, Karen Ann Thole

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

    9 Scopus citations

    Abstract

    High freestream turbulence levels have been shown to greatly augment the heat transfer on a gas turbine airfoil. To better understand these effects, this study has examined the effects elevated freestream turbulence levels have on the boundary layer development along a stator vane airfoil. Low freestream turbulence measurements (0.6%) were performed as a baseline for comparison to measurements at combustor simulated turbulence levels (19.5%). A two-component LDV system was used for detailed boundary layer measurements of both the mean and fluctuating velocities on the pressure and suction surfaces. Although the mean velocity profiles appeared to be more consistent with laminar profiles, large velocity fluctuations were measured in the boundary layer along the pressure side at the high freestream turbulence conditions. Along the suction side, transition occurred further upstream due to freestream turbulence.

    Original languageEnglish (US)
    Title of host publicationHeat Transfer; Electric Power; Industrial and Cogeneration
    PublisherAmerican Society of Mechanical Engineers (ASME)
    Volume3
    ISBN (Print)9780791878521
    DOIs
    StatePublished - Jan 1 2001
    EventASME Turbo Expo 2001: Power for Land, Sea, and Air, GT 2001 - New Orleans, LA, United States
    Duration: Jun 4 2001Jun 7 2001

    Other

    OtherASME Turbo Expo 2001: Power for Land, Sea, and Air, GT 2001
    CountryUnited States
    CityNew Orleans, LA
    Period6/4/016/7/01

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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