Search
CSV
RISImproving Film Cooling Performance Using Airfoil Contouring
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, a computational fluid dynamics (CFD)-based optimization process is used to change the contour of the airfoil near a suction-side cooling hole in order to improve its film ...
Scaling of Guide Vane Coolant Profiles and the Reduction of a Simulated Hot Streak
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The turbine section of a gas turbine engine is subjected to a nonuniform temperature distribution in the gas flow from the combustor. Regions of elevated temperatures, known as “hot streaks,” ...
Experimental Simulation of Contaminant Deposition on a Film Cooled Turbine Airfoil Leading Edge
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A significant challenge of utilizing coal-derived synthetic fuels for gas turbine engines is mitigating the adverse effects of fuel-born contaminant deposits on film cooled turbine surfaces. A ...
High-Resolution Film Cooling Effectiveness Measurements of Axial Holes Embedded in a Transverse Trench With Various Trench Configurations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Adiabatic film cooling effectiveness of axial holes embedded within a transverse trench on the suction side of a turbine vane was investigated. High-resolution two-dimensional data obtained from ...
Effects of Regular and Random Roughness on the Heat Transfer and Skin Friction Coefficient on the Suction Side of a Gas Turbine Vane
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Skin friction coefficients and heat transfer coefficients are measured for a range of regular and random roughnesses on the suction side of a simulated gas turbine vane. The skin friction ...
High-Resolution Film Cooling Effectiveness Comparison of Axial and Compound Angle Holes on the Suction Side of a Turbine Vane
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Film cooling adiabatic effectiveness for axial and compound angle holes on the suction side of a simulated turbine vane was investigated to determine the relative performance of these configurations. ...
The Effects of High Mainstream Turbulence and Turbine Vane Film Cooling on the Dispersion of a Simulated Hot Streak
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the combined effects of high turbulence and film cooling on the dispersion of a simulated hot streak as it passes over a scaled-up nozzle guide vane. Experimental data ...
The Effects of the Vane and Mainstream Turbulence Level on Hot Streak Attenuation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper discusses the effects of varying pitch position on the attenuation of a simulated hot streak in a vane cascade under conditions of low and high turbulence. Measurements describe the ...
Evaluation of Pressure Side Film Cooling With Flow and Thermal Field Measurements—Part I: Showerhead Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The goal of this study was to determine how showerhead blowing on a turbine vane leading edge affects of the performance of film cooling jets farther downstream. An emphasis was placed on ...
Evaluation of Pressure Side Film Cooling With Flow and Thermal Field Measurements—Part II: Turbulence Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study focused on the film cooling performance on the pressure side of a turbine vane subjected to high mainstream turbulence levels, with and without showerhead blowing. Whereas previous ...