Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Analysis of the natural acoustic modes of a gas turbine combustor using isothermal CFD simulations
Veil Energy Srl, Via Siemens 19, Bolzano.
Department of Management and Engineering, University of Padova.
Department of Industrial Engineering, University of Padova.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.ORCID-id: 0000-0002-4532-4530
2017 (Engelska)Ingår i: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 126, s. 489-499Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Thermoacoustic instabilities usually result from the coupling between the oscillatory heat release and one or more natural acoustic modes of the combustion system. When the shifting of system frequencies caused by the unsteady heat release is limited, the calculation of natural modes allows to identify which of them are excited by the flame once changes in flow temperature and composition due to combustion are considered. In this paper, isothermal computational fluid dynamics simulations are performed to predict the natural modes of a heavy-duty gas turbine combustor in reactive conditions. Combustion and heat transfer are neglected in the numerical analysis to simplify the model and limit the computational effort. The natural frequencies resulting from isothermal simulations are then corrected using a rather basic post-processing approach to account for temperature and gas composition changes due to combustion process. Frequency and amplitude of the calculated modes are finally compared to experimental measurements to evaluate the ability of the acoustic analysis to capture frequency and spatial shape of the combustor natural modes excited by the flame

Ort, förlag, år, upplaga, sidor
Elsevier, 2017. Vol. 126, s. 489-499
Nationell ämneskategori
Energiteknik
Forskningsämne
Energiteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-65086DOI: 10.1016/j.applthermaleng.2017.07.076ISI: 000412251200046Scopus ID: 2-s2.0-85026446129OAI: oai:DiVA.org:ltu-65086DiVA, id: diva2:1131669
Anmärkning

Validerad; 2017; Nivå 2; 2017-08-15 (andbra)

Tillgänglig från: 2017-08-15 Skapad: 2017-08-15 Senast uppdaterad: 2017-11-24Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Personposter BETA

Toffolo, Andrea

Sök vidare i DiVA

Av författaren/redaktören
Toffolo, Andrea
Av organisationen
Energivetenskap
I samma tidskrift
Applied Thermal Engineering
Energiteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 122 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf