Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Frederik M. Berger"'
Publikováno v:
International Journal of Spray and Combustion Dynamics. 14:131-142
This paper presents the investigation of high-frequency thermoacoustic oscillations and associated flame dynamics in an experimental gas turbine reheat combustor at atmospheric pressure. Examination of dynamic pressure measurements reveals bursts of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be5a9bd85b78197ae0f2d21ec11eab4a
https://doi.org/10.1177/17568277221088192
https://doi.org/10.1177/17568277221088192
Publikováno v:
Volume 3B: Combustion, Fuels, and Emissions.
This paper presents the investigation of high-frequency thermoacoustic limit-cycle oscillations in a novel experimental gas turbine reheat combustor featuring both auto-ignition and propagation stabilised flame zones at atmospheric pressure. Dynamic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a9330f21beee1daeb297bc97332d1e4
https://doi.org/10.1115/gt2021-59540
https://doi.org/10.1115/gt2021-59540
Publikováno v:
Volume 4B: Combustion, Fuels, and Emissions.
High-frequency (HF) thermoacoustic instabilities in stationary gas turbine combustors are receiving increased attention as they reduce the operational flexibility and increase the emissions of such machines. This paper deals with the numerical work r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26920aae34a3adebc897c15abf7c7a40
https://doi.org/10.1115/gt2018-77034
https://doi.org/10.1115/gt2018-77034
Publikováno v:
Volume 4B: Combustion, Fuels, and Emissions.
This paper presents a novel sequential combustor experiment for the study of reheat flame responses to high-frequency, transversal thermoacoustic oscillations. The reheat combustion chamber is of flat, quasi two-dimensional design to distinctly separ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f3d73cf56da7be718fe73da855298a1
https://doi.org/10.1115/gt2018-77101
https://doi.org/10.1115/gt2018-77101
Publikováno v:
Shock Waves. 26:181-192
The influence of transverse concentration gradients on detonation propagation in $$\hbox {H}_2$$ –air mixtures is investigated experimentally in a wide parameter range. Detonation fronts are characterized by means of high-speed shadowgraphy, OH* im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7aee3f641abbf1fa9da590361ddac08d
https://doi.org/10.1007/s00193-015-0598-8
https://doi.org/10.1007/s00193-015-0598-8
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 140
This paper presents the experimental investigation of pulsation-amplitude-dependent flame dynamics associated with transverse thermoacoustic oscillations at screech level frequencies in a generic gas turbine combustor. Specifically, the flame behavio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3488398567bbb6cfddbb5bacd35ff15
https://doi.org/10.1115/1.4038036
https://doi.org/10.1115/1.4038036
Publikováno v:
International Journal of Spray and Combustion Dynamics, Vol 9 (2017)
Self-excited, high-frequency first transversal thermoacoustic instabilities in a cylindrical combustion chamber equipped with a premixed swirl-stabilized flame are investigated. Phase-locked image analysis of the phenomena shows the displacement of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cf98613f497d18f7b15eeb611be3938
https://doaj.org/article/85e68de69d0c4c29b8090e9995bdb510
https://doaj.org/article/85e68de69d0c4c29b8090e9995bdb510
Autor:
Bruno Schuermans, Frederik M. Berger, Tobias Hummel, Thomas Sattelmayer, Nicolai V. Stadlmair
Publikováno v:
Volume 4A: Combustion, Fuels and Emissions.
This paper presents a set of methodologies for the extraction of linear growth and damping rates associated with transversal eigenmodes at screech level frequencies in thermoacoustically noncompact gas turbine combustion systems from time domain data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36e2b09f6148f6ac3b76a3a6eddedb54
https://doi.org/10.1115/gt2017-64233
https://doi.org/10.1115/gt2017-64233
Autor:
Frederik M. Berger, Tobias Hummel, Michael Hertweck, Jan Kaufmann, Bruno Schuermans, Thomas Sattelmayer
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 139
This paper presents the experimental approach for determination and validation of noncompact flame transfer functions of high-frequency, transverse combustion instabilities observed in a generic lean premixed gas turbine combustor. The established no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0c5605cea1cc4f2a0f081960c7b459c
https://doi.org/10.1115/1.4035591
https://doi.org/10.1115/1.4035591
Autor:
Noah Klarmann, Tobias Hummel, Moritz Schulze, Frederik M. Berger, Thomas Sattelmayer, Bruno Schuermans
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 139
A novel methodology for linear stability analysis of high-frequency thermoacoustic oscillations in gas turbine combustors is presented. The methodology is based on the linearized Euler equations (LEEs), which yield a high-fidelity description of acou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6ba689ae25a081f13e05b59a1090565
https://doi.org/10.1115/1.4034453
https://doi.org/10.1115/1.4034453