In this experimental study, we investigate the impact of transverse acoustic velocity fluctuations on flame response to axial velocity fluctuations. Such a scenario where a flame is under the influence of a 2D acoustic field occurs in annular gas turbine combustors during thermoacoustic instability. A generic premixed swirl flame is exposed to simultaneous transverse and axial acoustic forcing. The amplitude of axial forcing was kept constant, while the amplitude and relative phase (with respect to axial forcing) of the transverse forcing was systematically varied. Results obtained indicate that transverse velocity affects flame response, and that both the magnitude of transverse velocity and its phase with respect to axial forcing are important factors.
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June 2017
Research-Article
Swirl Flame Response to Simultaneous Axial and Transverse Velocity Fluctuations
Aditya Saurabh,
Aditya Saurabh
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
e-mail: aditya.saurabh@tu-berlin.de
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
e-mail: aditya.saurabh@tu-berlin.de
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Jonas P. Moeck,
Jonas P. Moeck
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
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Christian Oliver Paschereit
Christian Oliver Paschereit
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
Search for other works by this author on:
Aditya Saurabh
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
e-mail: aditya.saurabh@tu-berlin.de
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
e-mail: aditya.saurabh@tu-berlin.de
Jonas P. Moeck
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
Christian Oliver Paschereit
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Berlin 10623, Germany
1Corresponding author.
Contributed by the Combustion and Fuels Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received August 17, 2016; final manuscript received September 12, 2016; published online January 18, 2017. Editor: David Wisler.
J. Eng. Gas Turbines Power. Jun 2017, 139(6): 061502 (7 pages)
Published Online: January 18, 2017
Article history
Received:
August 17, 2016
Revised:
September 12, 2016
Citation
Saurabh, A., Moeck, J. P., and Paschereit, C. O. (January 18, 2017). "Swirl Flame Response to Simultaneous Axial and Transverse Velocity Fluctuations." ASME. J. Eng. Gas Turbines Power. June 2017; 139(6): 061502. https://doi.org/10.1115/1.4035231
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