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Phantom Cooling Effects on Rotor Blade Surface Heat Flux in a Transonic Full Scale 1 + 1/2 Stage Rotating Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental and numerical investigation of phantom cooling effects on cooled and uncooled rotating high pressure turbine blades in a full scale 1 + 1/2 stage turbine test is presented. Objectives set to capture, separate, ...
Unsteady Aerodynamic Interaction in a Closely Coupled Turbine Consistent With Contrarotation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The focus of the study presented here was to investigate the interaction between the blade and downstream vane of a stageandonehalf transonic turbine via computation fluid dynamic (CFD) analysis and experimental data. A ...
Endwall Loss Reduction of High Lift Low Pressure Turbine Airfoils Using Profile Contouring—Part I: Airfoil Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the reasoning for and the design process of contouring a high lift frontloaded low pressure turbine (LPT) airfoil near the endwall to reduce the endwall loss. The test airfoil, L2F, was designed to the ...
The Effect of Manufacturing Variations on Unsteady Interaction in a Transonic Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This effort focuses on the comparison of unsteadiness due to as-measured turbine blades in a transonic turbine to that obtained with blueprint geometries via computational fluid dynamics (CFD). A Reynolds-averaged Navier–Stokes ...
On the Development of High-Lift, High-Work Low-Pressure Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Here, we describe a combined design, numerical, and experimental program intended substantially to increase the lift and work of low-pressure turbine stages. This exercise is critically dependent upon the appropriate ...
Effects of Downstream Vane Bowing and Asymmetry on Unsteadiness in a Transonic Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Accurate predictions of unsteady forcing on turbine blades are essential for the avoidance of high-cycle-fatigue issues during turbine engine development. Further, if one can demonstrate that predictions of unsteady ...
Response of Separated Boundary Layers to Steady and Pulsated Flow Injection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new class of power generation devices that experiences increased losses due to bulk flow separation in segments of their expected in-flight regime is emerging. As such, active flow control becomes increasingly relevant ...
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