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RISDynamics of Shock Waves Interacting With Laminar Separated Transonic Turbine Flow Investigated by High-Speed Schlieren and Surface Hot-Film Sensors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The results presented in this paper are based on experimental investigations on a generic transonic low pressure turbine profile at high subsonic exit Mach numbers. Here, the flow on the suction side reaches a maximum ...
Axial Loss Development in Low Pressure Turbine Cascades
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this work presented in this paper is to study the performance of lowpressure turbines in detail by extensive numerical simulations. The numerical flow simulations were conducted using the general purpose ...
Experimental Investigation of the Diffuser Vane Clearance Effect in a Centrifugal Compressor Stage With Adjustable Diffuser Geometry—Part I: Compressor Performance Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Adjustable diffuser vanes offer an attractive design option for centrifugal compressors applied in industrial applications. However, the knowledge about the impact on compressor performance of a diffuser vane clearance ...
Experimental Investigation of the Diffuser Vane Clearance Effect in a Centrifugal Compressor Stage With Adjustable Diffuser Geometry: Part II—Detailed Flow Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Adjustable diffuser vanes offer an attractive design option for centrifugal compressors applied in industrial applications. However, the knowledge about the impact on compressor performance of a diffuser vane clearance ...
Mach Number Distribution and Profile Losses for Low-Pressure Turbine Profiles With High Diffusion Factors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The results of this investigation come from two linear cascades at high diffusion factors (DFs). The measurements presented for each low-pressure turbine (LPT) profile were conducted at midspan under a range of Reynolds- ...
A Comparison of Turbulence Levels From Particle Image Velocimetry and Constant Temperature Anemometry Downstream of a Low-Pressure Turbine Cascade at High-Speed Flow Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The development and verification of new turbulence models for Reynolds-averaged Navier–Stokes (RANS) equation-based numerical methods require reliable experimental data with a deep understanding of the underlying turbulence ...
Steady and Unsteady Temperature Measurements in the Wake of a Linear Cascade With Heated Airfoils
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Understanding basic aerodynamic and thermodynamic processes in engine components is critical to achieving higher efficiencies and lower fuel consumption in aircraft engines. To aid in this process, a linear compressor ...
Loss Characterization of Advanced VIGV Configurations With Adjustable Blade Geometry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Variable inlet guide vanes (VIGV) are the main control element to adjust the flow rate of industrial centrifugal compressors by customized pre-swirl in the inlet plane of the impeller. The efficient working range of VIGVs ...
On High-Resolution Pressure Amplitude and Phase Measurements Comparing Fast-Response Pressure Transducers and Unsteady Pressure-Sensitive Paint
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the simultaneous application of fast-response pressure transducers and unsteady pressure-sensitive paint (unsteady PSP) for the precise determination of pressure amplitudes and phases up to 3000 Hz. ...
The Effects of Inlet Boundary Layer Condition and Periodically Incoming Wakes on Secondary Flow in a Low Pressure Turbine Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A particular turbine cascade design is presented with the goal of providing a basis for high quality investigations of endwall flow under high-speed conditions with unsteady inflow. The key feature of the design is an ...