Chaos in an imperfectly premixed model combustor.
Chaos in an imperfectly premixed model combustor.
复制标题
DOI：
10.1063/1.4906943
复制
发表时间：
2015-02
期刊：
影响因子：
2.9
通讯作者：
Lipika Kabiraj;Aditya Saurabh;N. Karimi;Anna Sailor;E. Mastorakos;A. Dowling;C. Paschereit
中科院分区：
文献类型：
--
作者：
Lipika Kabiraj;Aditya Saurabh;N. Karimi;Anna Sailor;E. Mastorakos;A. Dowling;C. Paschereit
本文报道了在实验室尺度的湍流燃烧室中，以总当量比为控制参数，在不完全预混模式下观察到的非线性分岔现象。结果表明，热声不稳定性的动力学对应的准周期分岔低维，确定性的混沌，是常见的各种耗散非线性系统的路线。这些结果支持了最近对层流预混火焰燃烧室中分叉情况的识别（Kabiraj等人，混沌：干扰。非线性科学杂志22，023129（2012）），并将观察扩展到实际相关的燃烧器配置。
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.