Chaos in an imperfectly premixed model combustor
Chaos in an imperfectly premixed model combustor
This article reports nonlinear bifurcations observed in a laboratory scale, turbulent combustor operating under imperfectly premixed mode with global equivalence ratio as the control parameter. The results indicate that the dynamics of thermoacoustic instability correspond to quasi-periodic bifurcation to low-dimensional, deterministic chaos, a route that is common to a variety of dissipative nonlinear systems. The results support the recent identification of bifurcation scenarios in a laminar premixed flame combustor (Kabiraj et al., Chaos: Interdiscip. J. Nonlinear Sci. 22, 023129 (2012)) and extend the observation to a practically relevant combustor configuration.
Kabiraj, L.
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Saurabh, A.
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Karimi, N.
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Sailor, A.
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Mastorakos, E.
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Dowling, A.P.
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Paschereit, C.O.
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19 January 2015
Kabiraj, L.
ff8d7c30-787a-4b7e-8d3f-32a843884297
Saurabh, A.
cc444f5e-9443-4511-9676-42f36a55be29
Karimi, N.
620646d6-27c9-4e1e-948f-f23e4a1e773a
Sailor, A.
11aff311-4b95-43ea-bdfe-6ff96f8f3168
Mastorakos, E.
159653c4-33f6-4f4a-8f79-4751bfd4ba64
Dowling, A.P.
89f68a94-5627-41c9-854f-ed945517f157
Paschereit, C.O.
e229d4bd-7749-43d4-b6cc-4f90970087c1
Kabiraj, L., Saurabh, A., Karimi, N., Sailor, A., Mastorakos, E., Dowling, A.P. and Paschereit, C.O.
(2015)
Chaos in an imperfectly premixed model combustor.
Chaos, 25 (2), [023101].
(doi:10.1063/1.4906943).
Abstract
This article reports nonlinear bifurcations observed in a laboratory scale, turbulent combustor operating under imperfectly premixed mode with global equivalence ratio as the control parameter. The results indicate that the dynamics of thermoacoustic instability correspond to quasi-periodic bifurcation to low-dimensional, deterministic chaos, a route that is common to a variety of dissipative nonlinear systems. The results support the recent identification of bifurcation scenarios in a laminar premixed flame combustor (Kabiraj et al., Chaos: Interdiscip. J. Nonlinear Sci. 22, 023129 (2012)) and extend the observation to a practically relevant combustor configuration.
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Published date: 19 January 2015
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Local EPrints ID: 508873
URI: http://eprints.soton.ac.uk/id/eprint/508873
ISSN: 1054-1500
PURE UUID: 991b0d85-47bf-44b8-8801-80346dc75d9e
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Date deposited: 05 Feb 2026 17:42
Last modified: 06 Feb 2026 03:12
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Author:
L. Kabiraj
Author:
A. Saurabh
Author:
N. Karimi
Author:
A. Sailor
Author:
E. Mastorakos
Author:
A.P. Dowling
Author:
C.O. Paschereit
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