Change search
ReferencesLink to record
Permanent link

Direct link
Aeroelastic instabilities simulations on turbofan HP compressorblisk at surge-like reversed flow conditions
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Flight Dynamics.
2013 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This paper presents the work done at the High Pressure Compressor design division of Safran Snecma to simulate the flutter behaviour of a compressor blisk at reversed flow conditions. The report states the preliminary phase of modelling the reversed flow on an entire compressor with a stationary simulation and the single blade aeroelastic study results obtained. One can then get interpretations on the blow down aerodynamics that can affect the mechanical behaviour of the blade. Eight simulations of a single blade model have been done on two aeroelastic configurations, each one on a rotor from two different compressor designs. By investigating the airflow around the blade profiles, it becomes possible to get values on the aerodynamic damping on the blade. As presented below, even with strong surge stresses, the compressor stage will remain flutter-free.

Place, publisher, year, edition, pages
2013. , 11 p.
Trita-AVE, ISSN 1651-7660 ; 2013:49
National Category
Aerospace Engineering
URN: urn:nbn:se:kth:diva-129710OAI: diva2:653238
Subject / course
Aeronautical Engineering
Available from: 2013-10-03 Created: 2013-10-03 Last updated: 2013-10-03Bibliographically approved

Open Access in DiVA

fulltext(2530 kB)364 downloads
File information
File name FULLTEXT01.pdfFile size 2530 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
Flight Dynamics
Aerospace Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 364 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 98 hits
ReferencesLink to record
Permanent link

Direct link