Full Content is available to subscribers

Subscribe/Learn More  >

Investigation of Cycle-to-Cycle Variability in an Unstable Gas Turbine Combustor

[+] Author Affiliations
Tim C. Lieuwen, Ben T. Zinn

Georgia Institute of Technology, Atlanta, GA

Paper No. 2000-GT-0081, pp. V002T02A002; 9 pages
  • ASME Turbo Expo 2000: Power for Land, Sea, and Air
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Munich, Germany, May 8–11, 2000
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7855-2
  • Copyright © 2000 by ASME


This paper describes an experimental and theoretical investigation of the processes controlling the characteristics of limit cycle oscillations in an unstable gas turbine combustor. Specifically, this paper describes an analysis of the cycle-to-cycle variations in the phase of the oscillating pressure during an instability. It is shown that the phase of the combustor pressure oscillations continuously drifts in a predominantly irregular manner. It is also shown that this phase drift may primarily be caused by random processes (i.e., noise) and, thus, may not reflect any of the underlying dynamics of the instability. Finally, it is shown that deterministic factors appear to have a small affect on the phase variability that manifests itself as slow, approximately 1.4 Hz oscillation of the phase. It is concluded that analysis of “steady state” limit cycle pressure data may not provide the desired information about the nonlinear processes controlling the system’s dynamics because of the affects of background noise.

Copyright © 2000 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In