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Unsteady Investigation of Intermediate Turbine Ducts Under the Influence of Purge Flows
Publisher: The American Society of Mechanical Engineers (ASME)
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 ...
Impact of High-Pressure-Turbine Purge Flow on the Evolution of Turbulence in a Turbine Vane Frame
Publisher: The American Society of Mechanical Engineers (ASME)
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 ...
Experimental and Numerical Comparison of Two Turbine Vane Frame Designs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an experimental study supported by numerical simulations of the performance of two turbine vane frames (TVFs) at various purge and TVF inlet swirl conditions representing both on- and off-design operations. ...
The Interaction of Main Stream Flow and Cavity Flows in Turbine Center Frames and Turbine Vane Frames
Publisher: The American Society of Mechanical Engineers (ASME)
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 ...