Assessing the Effect of Differential Diffusion for Stratified Lean Premixed Turbulent Flames with the Use of LES-PDF Framework
Assessing the Effect of Differential Diffusion for Stratified Lean Premixed Turbulent Flames with the Use of LES-PDF Framework
复制标题
使用 LES-PDF 框架评估分层稀薄预混湍流火焰的差异扩散效果
DOI:
10.1080/00102202.2019.1583222
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发表时间:
2019
影响因子:
1.9
通讯作者:
Jones W
中科院分区:
文献类型:
--
作者:
Jones W
Lean premixed stratified combustion is rapidly growing in importance for modern engine designs. This paper presents large eddy simulations for a new burner design to assess the predictive capability of the probability density function (pdf) approach to flames that propagate through non-homogeneous mixtures in terms of equivalence ratio. Although various efforts have been made in the past for the simulation of the same test case the novelty of this work lies to the fact that it is the first simulation effort that differential diffusion is accounted for given the relatively low Reynolds numbers (13,800) of the configuration. First mean and root mean square velocity simulations are performed for the isothermal cases to assess the effect of the grid resolution and the overall LES flow field solver. Then instantaneous snapshots of the flame are presented to provide insight to the structure of the flame and the effect of stratification. Finally, results for velocities, temperature and mixture fraction are presented and compared with the experimental data. Overall, the results are in very good agreement with experiments.
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影响因子:
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作者:
G. Kuenne;F. Seffrin;Frederik Fuest;Thabo Stahler;A. Ketelheun;D. Geyer;J. Janicka;A. Dreizler
通讯作者:
G. Kuenne;F. Seffrin;Frederik Fuest;Thabo Stahler;A. Ketelheun;D. Geyer;J. Janicka;A. Dreizler
DOI:
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发表时间:
2013
期刊:
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DOI:
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2000
期刊:
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作者:
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B. Deshaies
影响因子:
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作者:
Brauner, T.;Jones, W. P.;Marquis, A. J.
通讯作者:
Marquis, A. J.
DOI:
--
发表时间:
2014
期刊:
影响因子:
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作者:
T. Brauner;W. Jones;A. Marquis
通讯作者:
A. Marquis