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- W771752666 abstract "The present study investigated the effect of relative position of the blade on blade surface heat transfer. The experiments were conducted in a low speed wind tunnel with a stationary annular turbine cascade. The test section has a single turbine stage composed of sixteen guide vanes and blades. The chord length of the blade is 150 mm and the mean tip clearance of the blade is of the blade chord. The Reynolds number based on blade inlet velocity and chord length is and mean turbulence intensity is about . To investigate the effect of relative position of blade, the blade at six different positions in a pitch was examined. For the detailed mass transfer measurements, a naphthalene sublimation technique was used. In general, complex heat transfer characteristics are observed on the blade surface due to various flow characteristics, such as a laminar flow separation, relaminarization, flow acceleration, transition to turbulence and tip leakage vortices. The results show that the blade relative position affects those heat transfer characteristics because the distributions of incoming flow velocity and turbulence intensity are changed. Especially, the heat transfer pattern on the near-tip region is significantly affected by the relative position of the blade because the effect of tip leakage vortex is strongly dependent on the blade position. On the pressure side, the effect of blade position is not so significant as on the suction side surface although the position and the size of the separation bubble are changed." @default.
- W771752666 created "2016-06-24" @default.
- W771752666 date "2005-08-01" @default.
- W771752666 modified "2023-10-18" @default.
- W771752666 title "Effect of Relative Position of Vane and Blade on Heat/Mass Transfer Characteristics on Stationary Turbine Blade Surface" @default.
- W771752666 cites W1981395081 @default.
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- W771752666 doi "https://doi.org/10.5293/kfma.2005.8.4.027" @default.
- W771752666 hasPublicationYear "2005" @default.
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