Effects of the scalar dissipation rate on the steady laminar flamelet model
Effects of the scalar dissipation rate on the steady laminar flamelet model
复制标题
标量耗散率对稳定层流火焰模型的影响
DOI:
10.1088/0031-8949/2010/t142/014048
复制
发表时间:
2010-12
期刊:
影响因子:
2.9
通讯作者:
中科院分区:
文献类型:
--
作者:
The effects of the scalar dissipation rate (SDR) on the quenching points of the steady laminar flamelet model at different stoichiometric ratios of reactants are investigated for a one-step reversible reaction with the Arrhenius rate. SDRs are either presumed uniform or modeled by the mapping closure approach. With these two models, steady flamelet equations are solved in mixture-fraction space, and complete ‘S-shaped’ curves are obtained. The results show that the SDR models affect the locus of the ‘S-shaped’ curves and the quenching points are remarkably different. The quenching state is reached at a lower χst for χ=χst but at a higher χst for χ=χstexp[−2 erfc−1(2z)2]. However, when the flame state is far from the quenching point, the difference in ‘S-shaped’ curves is small. This result is associated with the mixed state of the reactants; the poorer the mixing, the more remarkable the difference in ‘S-shaped’ curves becomes.
登录
查看更多内容
DOI:
10.1103/physreve.70.036309
发表时间:
2004-09
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
G. He;Zi-Fan Zhang
通讯作者:
G. He;Zi-Fan Zhang
影响因子:
3.4
作者:
Bilger, RW;Pope, SB;Driscoll, JF
通讯作者:
Driscoll, JF
影响因子:
29.5
作者:
F. Williams
通讯作者:
F. Williams
影响因子:
3.7
作者:
Sripakagorn, P;Mitarai, S;Pitsch, H
通讯作者:
Pitsch, H
影响因子:
1.3
作者:
H. Pitsch;S. Fedotov
通讯作者:
H. Pitsch;S. Fedotov