Mathematical Techniques in Obtaining Reduced Kinetic Mechanisms With Illustration for Methane Flames
DOI:
https://doi.org/10.5902/2179460X20078Abstract
The computational treatment of detailed kinetic reaction mechanisms of combustion is very expensive, especially when the objective is the implementation of CFD (Computational Fluid Dynamics) models; therefore, major effort in searching for methods of mechanisms reduction has been observed. In the pursuit of efficient techniques, various ideas and theories have emerged in recent years. Sensitivity analysis, lumping and DRG (Directed Relation Graph) are some of these techniques, which seem to be powerful tools that can assist in this challenge. This paper shows these strategies, objectively describing their applications on reduction of reaction mechanisms. A reduced mechanism for methane flames consisting of six-step among nine reactive species is obtained from the skeletal mechanism, which consists of 25 reactions.
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