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Full-Coverage Film Cooling: Film Effectiveness and Heat Transfer Coefficients for Dense and Sparse Hole Arrays at Different Blowing Ratios
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental results are presented for a full coverage film cooling arrangement which simulates a portion of a gas turbine engine, with appropriate streamwise static pressure gradient and varying ...
Showerhead Film Cooling Performance of a Turbine Vane at High Freestream Turbulence in a Transonic Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper experimentally investigates the effect of blowing ratio and exit Reynolds number/Mach number on the film cooling performance of a showerhead film cooled first stage turbine vane. The ...
Separate Effects of Mach Number and Reynolds Number on Jet Array Impingement Heat Transfer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Limited available data suggest a substantial impact of Mach number on the heat transfer from an array of jets impinging on a surface at fixed Reynolds number. Many jet array heat transfer ...
Heat Transfer in a Two-Pass Rectangular Rotating Channel With 45-deg Angled Rib Turbulators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental heat transfer results are presented in a two-pass rectangular channel (aspect ratio=2:1) with smooth and ribbed surfaces for two channel orientations (90 and 135 deg to the direction ...
Heat Transfer in Leading Edge, Triangular Shaped Cooling Channels With Angled Ribs Under High Rotation Numbers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The gas turbine blade/vane internal cooling is achieved by circulating compressed air through the cooling channels inside the turbine blade. Cooling channel geometries vary to fit the blade ...
High Rotation Number Effect on Heat Transfer in a Triangular Channel With 45 deg, Inverted 45 deg, and 90 deg Ribs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat transfer and pressure drop have been experimentally investigated in an equilateral triangular channel (Dh=1.83 cm), which can be used to simulate the internal cooling passage near the leading ...
Effect of Temperature Ratio on Jet Array Impingement Heat Transfer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper consider the effects of temperature ratio on the heat transfer from an array of jets impinging on a flat plate. At a constant Reynolds number of 18,000 and a constant Mach number ...
Experimental and Numerical Investigation of Convective Heat Transfer in a Gas Turbine Can Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experiments and numerical computations are performed to investigate the convective heat transfer characteristics of a gas turbine can combustor under cold flow conditions in a Reynolds number ...
Effects of Large Scale High Freestream Turbulence and Exit Reynolds Number on Turbine Vane Heat Transfer in a Transonic Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper experimentally and numerically investigates the effects of large scale high freestream turbulence intensity and exit Reynolds number on the surface heat transfer distribution of a ...
Study of Flow and Convective Heat Transfer in a Simulated Scaled Up Low Emission Annular Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern dry low emissions (DLE) combustors are characterized by highly swirling and expanding flows that makes the convective heat load on the gas side difficult to predict and estimate. A ...