Abstract: Abstract. Rim cavities in gas turbines are critical to both thermodynamic efficiency and structural integrity throughout the engine’s lifecycle. As efforts to improve performance continue, understanding the unsteady flow ...

Abstract: This paper describes the measurement and postprocessing of turbulence data. The experiments were carried out in a two-stage, two-spool transonic turbine test rig at the Institute for Thermal Turbomachinery and Machine ...

Abstract: Reducing greenhouse gas emissions and high fuel expenses motivates manufacturers to design more efficient aircraft engines. For directly driven jet engines, this is possible through increased bypass ratios for high propulsive ...

Abstract: The aerodynamic flow field at the outlet of a high-pressure turbine (HPT) stage in a modern turbofan engine is highly unsteady and strongly influenced by periodic fluctuations from the HPT rotor, also interacting with the ...

Abstract: Abstract. This study introduces the first application of a sparsity-promoting linear regression technique to analyze the flow behavior within the rim seal region between the rotor and stator disks in a highly instrumented ...

Abstract: This paper focuses on the interaction between the last high-pressure turbine (HPT) stage purge flows and the intermediate turbine duct (ITD) in modern turbofan engines. Two state-of-the-art ITD concepts are analyzed in ...