Measurement and Modeling of the Acoustic Response in a High Pressure Combustor

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In this paper, a one dimensional acoustic network model is presented which can be used as a design tool to predict the limit cycle pressure oscillations in a gas turbine combustor. Analytically represented models are combined with measured flame transfer functions and well defined boundary conditions. Additionally acoustic damping due to turbulence, acoustic reflection at contractions, modification of the acoustic speed of sound due to a mean flow and effect of temperature gradient that play a role in the acoustic modeling of combustion systems have been included in this network model. The model is applied on a high-pressure laboratory combustor. Finally, the measured and predicted dynamic behaviour in the combustor is compared. The results indicate the network modelling approach is a promising design tool for gas turbine combustion applications
Original languageUndefined
Title of host publicationProceedings ECM2011
Place of PublicationCardiff (England)
PublisherBritish Section of the Combustion Institute
Number of pages6
Publication statusPublished - 28 Jun 2011
Event5th European Combustion Meeting, ECM 2011 - Cardiff, United Kingdom
Duration: 28 Jun 20112 Jul 2011
Conference number: 5


Conference5th European Combustion Meeting, ECM 2011
Abbreviated titleECM
Country/TerritoryUnited Kingdom


  • METIS-283914
  • IR-84337

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