Experimental investigation of a leaf seal prototype at engine-representative speeds and pressures

Pekris, Michael J., Franceschini, Gervas, Jahn, Ingo H. J. and Gillespie, David R. H. (2015). Experimental investigation of a leaf seal prototype at engine-representative speeds and pressures. In: ASME Turbo Expo 2015: Turbine Technical Conference and Exposition (GT2015). ASME Turbo Expo 2015, Montreal, Canada, (). 15-19 June 2015. doi:10.1115/GT2015-43231

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads

Author Pekris, Michael J.
Franceschini, Gervas
Jahn, Ingo H. J.
Gillespie, David R. H.
Title of paper Experimental investigation of a leaf seal prototype at engine-representative speeds and pressures
Conference name ASME Turbo Expo 2015
Conference location Montreal, Canada
Conference dates 15-19 June 2015
Convener International Gas Turbine Institute
Proceedings title ASME Turbo Expo 2015: Turbine Technical Conference and Exposition (GT2015)
Journal name Proceedings of the ASME Turbo Expo
Place of Publication New York, NY, United States
Publisher American Society of Mechanical Engineers (ASME)
Publication Year 2015
Sub-type Fully published paper
DOI 10.1115/GT2015-43231
Open Access Status Not Open Access
ISBN 9780791856734
Volume 5C
Total pages 13
Collection year 2016
Language eng
Formatted Abstract/Summary
The application of compliant filament seals to jet engine secondary air systems has been shown to yield significant improvements in specific fuel consumption and improved emissions. One such technology, the leaf seal, provides comparable leakage performance to the brush seal but offers higher axial rigidity, significantly reduced radial stiffness and improved compliance with the rotor. Investigations were carried out on the Engine Seal Test Facility at the University of Oxford into the behavior of a leaf seal prototype at high running speeds. The effects of pressure, speed and cover plate geometry on leakage and torque are quantified. Early publications on leaf seals showed that air-riding at the contact interface might be achieved. Results are presented which appear to confirm that air-riding is taking place. Consideration is given to a possible mechanism for torque reduction at high rotational speeds.
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 1 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Thu, 08 Oct 2015, 23:39:20 EST by Ingo Jahn on behalf of School of Mechanical and Mining Engineering