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Keywords: blade tip clearance
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Proceedings Papers

Analytical Methods for Transonic Compressor Rotor Blade Tip Clearance Measurements Using Capacitive Probes

David Magno, Anthony Gannon, Walter Smith, Garth Hobson
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T05A017, June 13–17, 2022
Paper No: GT2022-82750
DOI: https://doi.org/10.1115/GT2022-82750
... Abstract A method is presented to improve the capability of proximity sensing capacitive probes used in rotor blade tip clearance (BTC) measurements. This research presents the development and result of a post-processing method used to calibrate capacitive probe instrumentation...
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Topics: Analytical methods, Blades, Clearances (Engineering), Compressors, Fast Fourier transforms, Probes, Rotors
Proceedings Papers

Unsteady Film Cooling Performance on the High Pressure Turbine Shroud Under Rotor-Stator Interaction for an Aero-Engine

Zihao Bao, Zhihai Kou, Bo Han, Guangchao Li
Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT12A003, June 7–11, 2021
Paper No: GT2021-58889
DOI: https://doi.org/10.1115/GT2021-58889
... present an unsteady and rotation speed, the shear layer formed by the blade sweep on the periodic phenomenon. The blade tip clearance leakage flow, leakage vortex and mainstream suppression have important turbine shroud wall becomes stronger. The shear layer hinders the effects on the film cooling...
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Topics: Aircraft engines, Blades, Clearances (Engineering), Film cooling, High pressure (Physics), Leakage, Leakage flows, Rotors, Stators, Turbines
Proceedings Papers

Blade Tip Clearance Measurement Systems for High Speed Turbomachinery Applications and the Potential for Blade Tip Timing Applications

Jack David Stubbs, Muhammad Arslan Shahid
Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A021, September 21–25, 2020
Paper No: GT2020-15403
DOI: https://doi.org/10.1115/GT2020-15403
... individual blade tip clearance measurements on high speed rotors of up to 90,000rpm. A rotor was designed using finite element analysis; unique blade responses have been predicted. The objective of this investigation was to consider two different approaches to the application of blade tip clearance...
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Topics: Blades, Clearances (Engineering), Measurement systems, Probes, Rotors, Turbomachinery