Predicting NO Formation with Flamelet Generated Manifolds

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Abstract

With the increasing tightness of emission limits, models for pollutant formation become more and more important. Steady flamelet models have proven to be very efficient methods to model combustion. However, formation of nitrogen oxide and soot are relatively slow chemical processes, which cannot be assumed in quasi-steady state and therefore need additional treatment. In this study, two methods to model NO formation using steady flamelet tables are investigated. The results are compared with simulations using the full chemistry model. It appears that accurate results can be obtained from the table when alpha is large enough (alpha > 10) to minimize interpolation errors. Solving an additional transport equation for NO is less sensitive to interpolation errors of the look-up procedure and results in slightly more accurate results than direct look-up.
Original languageEnglish
Title of host publicationProceedings of the 4th European Combustion Meeting (ECM 2009), 14-17 april 2009, Vienna, Austria
Place of PublicationVienna, Austria
PublisherTU Wien
Pages1-5
Publication statusPublished - 2009

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