The influence of a vortex on a freely propagating laminar methane-air flame

被引：0
作者：
Ki Yong Lee
机构：
[1] Andong National University,School of Mechanical Engineering
来源：
KSME International Journal | 2004年 / 18卷
关键词：
Vortex; Equivalence; NO Emission Index; Field Equation; Flame Thickness;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The change in the NO emission indices (EINO) in a two-dimensional plane has been investigated, which is due to the interaction between a vortex and methane-air flames established at different equivalence ratios, by solving the field equation. After solving the field equation, the spatial distribution of G-values is obtained. The NO emission index is calculated after applying the appropriate relation between the G-values and the NO production rate or the mass fraction of methane obtained from the library of freely propagating flames created from detailed simulations. When a vortex exists in a reacting flow field, in general EINO slightly increases, whereas EINO is lowered in the vicinity of the vortex regardless of flow direction. A change in vortex size has negligible impact on EINOT but increasing the vortex strength slightly increases EINOt in the domain of this study.
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页码：857 / 864
页数：7
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