Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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The Influence of a Vortex on a Freely Propagating Laminar Methane-Air Flame

  • Lee, Ki-Yong (Andong National University, School of Mechanical Engineering)
  • Published : 2004.05.01
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Abstract

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 ElNO is lowered in the vicinity of the vortex regardless of flow direction. A change in vortex size has negligible impact on EINO$\_$T/ but increasing the vortex strength slightly increases EINO$\_$T/ in the domain of this study.

Keywords

References

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