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RISImpact of Time-Resolved Entropy Measurement on a One-and-One-Half-Stage Axial Turbine Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An accurate assessment of unsteady interactions in turbines is required, so that this may be taken into account in the design of the turbine. This assessment is required since the efficiency ...
Unsteady Flow Physics and Performance of a One-and-1∕2-Stage Unshrouded High Work Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an experimental study of the flow mechanisms of tip leakage across a blade of an unshrouded turbine rotor. It shows the design of a new one-and-1∕2-stage, unshrouded turbine ...
Optimized Shroud Design for Axial Turbine Aerodynamic Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a comprehensive study of the effect of shroud design in axial turbine aerodynamics. Experimental measurements and numerical simulations have been conducted on three different ...
Making Use of Labyrinth Interaction Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is the aim of this publication to attract the designers attention to the end wall flow interactions of shrouded high pressure turbines. One of the key issues for designing better turbines ...
Vortex Transport and Blade Interactions in High Pressure Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a study of the three-dimensional flow field within the blade rows of a high-pressure axial flow steam turbine stage. Half-delta wings were fixed to a rotating hub to ...
Vortex-Wake-Blade Interaction in a Shrouded Axial Turbine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents time-resolved flow field measurements at the exit of the first rotor blade row of a two stage shrouded axial turbine. The observed unsteady interaction mechanism between the ...
Unsteady Entropy Measurements in a High-Speed Radial Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The time-dependent relative entropy field at the impeller exit of a centrifugal compressor is measured. This study is part of a broader effort to develop comprehensive measurement techniques ...
Multistage Aspects and Unsteady Effects of Stator and Rotor Clocking in an Axial Turbine With Low Aspect Ratio Blading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the outcome of a recent study in clocking-related flow features and multistage effects occurring in high-pressure turbine blade geometries. The current investigation deals with ...
Unsteady Flow Interactions Within the Inlet Cavity of a Turbine Rotor Tip Labyrinth Seal
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper focuses on the flow within the inlet cavity of a turbine rotor tip labyrinth seal of a two stage axial research turbine. Highly resolved, steady and unsteady three-dimensional flow ...
Fluid Dynamics and Performance of Partially and Fully Shrouded Axial Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A unique comparative experimental and numerical investigation carried out on two test cases with shroud configurations, differing only in the labyrinth seal path, is presented in this paper. The ...