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2020 Vol.25, Issue 2 Preview Page

Research Article

Time Series Analysis of Acoustic Interactions in Multiple Gas Turbine Combustors

다중 가스터빈 연소기의 음향 상호작용 시계열 분석

Kihun Moon1
,
Kyu Tae Kim1*
문 기훈1
,
김 규태1*
1Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology
1한국과학기술원 항공우주공학과
* Corresponding Author
30 June 2020. pp. 36-43
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Abstract

Strong acoustic interactions via a cross-talk section were investigated in two coupled model gas turbine combustors. In particular, we focused on the dynamical state of different acoustic interaction modes using several time series analysis methods, including phase portraits, Poincaré maps, correlation dimensions, and histograms. Our results demonstrate that a period-1 limit cycle occurs for a push-push mode. By contrast, when a push-pull mode is excited in the system, a period-3 attractor emerges in the cross-talk section.

Keywords
Can-annular combustor
Combustion instability
Can-can interaction
Cross-talk
Time- series analysis

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Information
  • Publisher :The Korean Society Combustion
  • Publisher(Ko) :한국연소학회
  • Journal Title :Journal of The Korean Society Combustion
  • Journal Title(Ko) :한국연소학회지
  • Volume : 25
  • No :2
  • Pages :36-43
  • Received Date : 2020-01-14
  • Revised Date : 2020-01-14
  • Accepted Date : 2020-03-05
  • DOI :https://doi.org/10.15231/jksc.2020.25.2.036
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