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- W2031373066 abstract "Abstract Using a planar particle image velocimetry (PIV) system, the fluid flow characteristics including mean velocity and pressure fields in a real coolant channel of a low pressure (LP) turbine blade have been investigated. To understand the flow characteristics within the real LP turbine blade in detail, the studied channel has a real blade-similar cross section, and the entire channel consists of two dividing walls, three passes, a 180° bend, 2 tip exits and 25 trailing edge exits. At first, the flow structures in the channel are captured by the PIV system at an inlet Reynolds number of 44,000, when all the exits are open. The experimental results exhibit different secondary flow features from the previous investigations, which were conducted mostly in simplified two-pass square or rectangular channels. Secondly, through a statistical post-processing of measured instantaneous velocity fields, the Reynolds-averaged Navier–Stokes (RANS) equations are solved to obtain the mean pressure distributions at several typical cross sections. At last, the effects of the inlet Reynolds numbers and coolant ejection from the tip exit above the 1st pass on the flow characteristics are discussed. From the comparisons of the flow characteristics obtained at different flow conditions, it can be concluded that the flow characteristics are sensible to the inlet Reynolds number and coolant ejection from tip exit." @default.
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- W2031373066 date "2013-02-01" @default.
- W2031373066 modified "2023-10-18" @default.
- W2031373066 title "An experimental investigation on fluid flow characteristics in a real coolant channel of LP turbine blade with PIV technique" @default.
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- W2031373066 doi "https://doi.org/10.1016/j.expthermflusci.2012.10.006" @default.
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