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RISTime Averaged and Time Accurate Aerodynamic Effects of Rotor Purge Flow for a Modern, One and One Half Stage High Pressure Turbine—Part II: Analytical Flow Field Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The detailed mechanisms of purge flow interaction with the hotgas flow path were investigated using both unsteady computationally fluid dynamics (CFD) and measurements for a turbine operating at design corrected conditions. ...
Time Averaged and Time Accurate Aerodynamic Effects of Forward Rotor Cavity Purge Flow for a High Pressure Turbine—Part I: Analytical and Experimental Comparisons
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of rotor purge flow on the unsteady aerodynamics of a highpressure turbine stage operating at design corrected conditions has been investigated, both experimentally and computationally. The experimental configuration ...
Comparison of Harmonic and Time Marching Unsteady Computational Fluid Dynamics Solutions With Measurements for a Single Stage High Pressure Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unsteady aerodynamics of a singlestage highpressure turbine has been the subject of a study involving detailed measurements and computations. Data and predictions for this experiment have been presented previously, but ...
Heat Flux Measurements for a Realistic Cooling Hole Pattern With Multiple Flow Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Predicting cooling flow migration and its impact on surface heat flux for a turbine operating at designcorrected conditions is a challenging task. While recent data sets have provided a baseline for comparison, they have ...
Heat Transfer for High Aspect Ratio Rectangular Channels in a Stationary Serpentine Passage With Turbulated and Smooth Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat transfer distributions are presented for a stationary three passage serpentine internal cooling channel for a range of engine representative Reynolds numbers. The spacing between the sidewalls of the serpentine passage ...
Heat Transfer for the Film Cooled Vane of a 1 1/2 Stage High Pressure Transonic Turbine—Part II: Effect of Cooling Variation on the Vane Airfoil and Inner End Wall
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The impact of film cooling on heat transfer is investigated for the highpressure vane of a 11/2 stage highpressure turbine operating at design corrected conditions. Cooling is supplied through three independently controllable ...
Heat Transfer for the Film Cooled Vane of a 1 1/2 Stage High Pressure Transonic Turbine—Part I: Experimental Configuration and Data Review With Inlet Temperature Profile Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the vane airfoil and inner endwall heat transfer for a fullscale turbine stage operating at design corrected conditions under the influence of different vane inlet temperature profiles and vane ...
Time Resolved Heat Transfer and Surface Pressure Measurements for a Fully Cooled Transonic Turbine Stage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow field in axial gas turbines is driven by strong unsteady interactions between stationary and moving components. While timeaveraged measurements can highlight many important flow features, developing a deeper ...
Wireless Telemetric Data Acquisition and Real Time Control for a High Measurement Density Internal Heat Transfer Experiment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a wireless data transmission system for a largescale rotating experiment to investigate the heat transfer in a threepassage serpentine test section. Patterned after the NASA HOST program, the current ...
Unsteady Heat Transfer and Pressure Measurements on the Airfoils of a Rotating Transonic Turbine With Multiple Cooling Configurations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Measurements are presented for a high-pressure transonic turbine stage operating at design-corrected conditions with forward and aft purge flow and blade film cooling in a short-duration blowdown facility. Four different ...