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A Global Approach to Turbomachinery Flow Control: Passage Vortex Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A flow control scheme was implemented in a lowpressure turbine cascade that simultaneously mitigated profile and endwall losses using midspan vortex generator jets (VGJs) and endwall suction. The combined system had an ...
A Probabilistic Approach to Turbine Uncertainty
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Efficiency is an essential metric for assessing turbine performance. Modern turbines rely heavily on numerical computational fluid dynamics (CFD) tools for design improvement. With more compact turbines leading to lower ...
Aerothermal Optimization of Fully Cooled Turbine Blade Tips
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Optimal turbine blade tip designs have the potential to enhance aerodynamic performance while reducing the thermal loads on one of the most vulnerable parts of the gas turbine. This paper describes a novel strategy to ...
Development of a Lifetime Pressure Sensitive Paint Procedure for High-Pressure Vane Testing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Optical measurements based on fast response pressure sensitive paint (PSP) provide enhanced spatial resolution of the pressure field. This paper presents laser lifetime PSP at 20 kHz, with precise calibrations, and results ...
Particle Image Velocimetry in a High-Pressure Turbine Stage at Aerodynamically Engine Representative Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Particle image velocimetry (PIV) is a well-established technique for determining the flow direction and velocity magnitude of complex flows. This paper presents a methodology for executing this nonintrusive measurement ...