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RISThe Tip Leakage Flow of an Unshrouded High Pressure Turbine Blade With Tip Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental, analytical, and numerical methods have been employed to study the aerodynamic performance of four different cooled tips with coolant mass ratios between 0% and 1.2% at three tip ...
Effects of Reynolds Number and Freestream Turbulence Intensity on the Unsteady Boundary Layer Development on an Ultra-High-Lift Low Pressure Turbine Airfoil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effects of Reynolds numbers and the freestream turbulence intensities (FSTIs) on the unsteady boundary layer development on an ultra-high-lift low-pressure turbine airfoil, so-called T106C, are ...
Combined Effects of Surface Trips and Unsteady Wakes on the Boundary Layer Development of an Ultra-High-Lift LP Turbine Blade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental investigation of the combined effects of upstream unsteady wakes and surface trips on the boundary layer development on an ultra-high-lift low-pressure turbine blade, known as ...
Effect of Roughness and Unsteadiness on the Performance of a New Low Pressure Turbine Blade at Low Reynolds Numbers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a study of the performance of a high-lift profile for low pressure turbines at Reynolds numbers lower than in previous investigations. By following the results of (2008, ...
Separation and Transition Control on an Aft-Loaded Ultra-High-Lift LP Turbine Blade at Low Reynolds Numbers: High-Speed Validation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the second part of an investigation of the combined effects of unsteadiness and surface roughness on an aft-loaded ultra-high-lift low-pressure turbine (LPT) profile at low ...
Separation and Transition Control on an Aft-Loaded Ultra-High-Lift LP Turbine Blade at Low Reynolds Numbers: Low-Speed Investigation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental study was conducted to improve the performance of an aft-loaded ultra-high-lift low-pressure turbine blade known as U2 at low Reynolds numbers. This was achieved by manipulation ...
Effects of Endwall Motion on the Aero-Thermal Performance of a Winglet Tip in a HP Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In a gas turbine, the casing endwall moves relative to the blades. In this paper, numerical methods are first validated using experimental results for a stationary endwall. They are then used ...
The Effects of Wake-Passing Unsteadiness Over a Highly Loaded Compressor-Like Flat Plate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present study is concerned with wake-induced unsteady effects in axial-compressor blade rows. The goal is to exploit these effects in order to design high-lift blades without increasing the ...
Passive Shroud Cooling Concepts for HP Turbines: Experimental Investigations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The cooling of rotor shrouds in the first stage of a high-pressure turbine requires special attention as flatter turbine inlet temperature profiles and more highly loaded blades result in ...
Endwall Boundary Layer Development in an Engine Representative Four-Stage Low Pressure Turbine Rig
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Research by (“ Influence of the State of the Inlet Endwall Boundary Layer on the Interaction Between the Pressure Surface Separation and the Endwall Flows,” Proc. Inst. Mech. Eng., Part A, ...