Chaos in an imperfectly premixed model combustor

Journal Article · Sun Feb 15 04:00:00 EST 2015 · Chaos (Woodbury, N. Y.)

DOI:https://doi.org/10.1063/1.4906943· OSTI ID:22402530

Kabiraj, Lipika; Saurabh, Aditya; Paschereit, Christian O. ^[1]; Karimi, Nader ^[2]; Sailor, Anna ^[3]; Mastorakos, Epaminondas; Dowling, Ann P. ^[4]

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1. Hermann Föttinger Institut, Technische Universität Berlin (Germany)
2. School of Engineering, University of Glasgow (United Kingdom)
3. University of Wisconsin-Madison, Madison 53706 (United States)
4. Department of Engineering, University of Cambridge (United Kingdom)

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.

• OSTI ID: 22402530
• Journal Information: Chaos (Woodbury, N. Y.), Journal Name: Chaos (Woodbury, N. Y.) Journal Issue: 2 Vol. 25; ISSN CHAOEH; ISSN 1054-1500
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BIFURCATION
CHAOS THEORY
CONFIGURATION
CONTROL
DETERMINISTIC ESTIMATION
FLAMES
INSTABILITY
NONLINEAR PROBLEMS
PERIODICITY