Numerical Studies on the Impact of Equivalence Ratio Oscillations on Lean Premixed Flame Characteristics and Emissions
Numerical Studies on the Impact of Equivalence Ratio Oscillations on Lean Premixed Flame Characteristics and Emissions
复制标题
当量比振荡对稀薄预混火焰特性和排放影响的数值研究
DOI:
10.1080/00102202.2014.934610
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发表时间:
2014
影响因子:
1.9
通讯作者:
M. Oevermann
中科院分区:
文献类型:
--
作者:
C. Schrödinger;C. O. Paschereit;M. Oevermann
Laminar and turbulent one-dimensional lean premixed methane-air flames subject to equivalence ratio oscillations are investigated numerically. For the turbulent simulations, the Linear Eddy Model is employed. Harmonic perturbations at various frequencies and with various amplitudes are considered and their influence on CO and NO emissions, heat release rate fluctuations, and burning velocity is evaluated. The results indicate a strongly nonlinear behavior of the flame response for high forcing amplitudes attributed to nonlinear effects due to the interaction of burning velocity and equivalence ratio oscillations leading to nonsinusoidal oscillations at the flame front. Furthermore, the turbulent cases reveal decreasing mean burning velocities and heat release rates with increasing amplitudes due to damping of turbulent fluctuations induced by the oscillations.
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影响因子:
3.7
作者:
A. Kerstein
通讯作者:
A. Kerstein
DOI:
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发表时间:
1992
期刊:
影响因子:
--
作者:
R. Barlow;J.
通讯作者:
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DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
T. Poinsot;S. Candel
通讯作者:
S. Candel
影响因子:
4.4
作者:
H. M. Altay;R. Speth;D. Hudgins;A. Ghoniem
通讯作者:
H. M. Altay;R. Speth;D. Hudgins;A. Ghoniem
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
T. Echekki;A. Kerstein;J. Sutherland
通讯作者:
J. Sutherland