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1-7 of 7
Keywords: thermoacoustic instability
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2025, 147(4): 041025.
Paper No: GTP-24-1553
Published Online: November 5, 2024
... the flame response to flow disturbances is crucial in understanding thermoacoustic instabilities, which continues to be a relevant problem in industrial gas turbines. Thermoacoustic instabilities limit the operation range and reduce performance of combustors and can cause damage to the hardware. Given...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2024, 146(12): 121027.
Paper No: GTP-24-1348
Published Online: October 25, 2024
...Dewen Liu; Zhenzhen Feng; Xiaojing Tian; Liangliang Xu; Mingming Gu; Yang Lin; Xi Xia; Fei Qi Hydrogen-enriched natural gas combustion is a hot topic in industrial and academic communities due to the need for carbon emission reduction. However, thermoacoustic instability poses a major challenge...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2025, 147(2): 021004.
Paper No: GTP-24-1317
Published Online: September 26, 2024
... studied in this paper are now used in a full 3D Helmholtz solver for the thermoacoustic instabilities of this combustor to assess their ability in damping thermoacoustic instabilities and provide suggestions on optimum distribution of these HRs. Fig. 14 Arrangement of two different schemes...
Journal Articles
Ankit D. Kumar, Chinonso Ezenwajiaku, Ramanarayanan Balachandran, Andrea Ducci, Midhat Talibi, James C. Massey, Nedunchezhian Swaminathan
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2024, 146(12): 121008.
Paper No: GTP-24-1326
Published Online: August 23, 2024
..., the thermoacoustic instabilities of partially premixed hydrogen flames in a lean direct injection (LDI) multicluster combustor are characterized using dynamical systems theory. The combustor was operated at a range of bulk velocities (30–90 m/s) and equivalence ratios (0.2–0.6), and time-resolved pressure...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2022, 144(10): 101005.
Paper No: GTP-22-1088
Published Online: September 1, 2022
...Yuanqi Fang; Gaofeng Wang; Zengyi Lyu In this paper, we experimentally investigate the thermoacoustic instability issue in an annular combustor with 16 oblique-injecting premixed swirling burners. It is demonstrated that there exist three dominant modes in a narrow operating range: a Helmholtz mode...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111003.
Paper No: GTP-21-1053
Published Online: September 13, 2021
...Sheng Meng; Man Zhang This study numerically investigates the effect of spray-wall interactions on thermoacoustic instability prediction. The large-eddy simulations (LES)-based flame transfer function (FTF) and the convective time delay methods are used by combining the Helmholtz acoustic solver...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2021, 143(7): 071023.
Paper No: GTP-20-1456
Published Online: March 31, 2021
...John Strollo; Stephen Peluso; Jacqueline O'Connor This paper examines the effects of steady-state and transient hydrogen enrichment on thermoacoustic instability in a model gas turbine combustor. Combustion instability, a feedback loop between flame heat release rate oscillations and combustor...
