Comment and reply on the `Assessment of Combustion and Submodels for Turbulent Nonpremixed Hydrocarbon Flames'

Swaminathan  N.; Bilger  R.W.

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Comment and reply on the `Assessment of Combustion and Submodels for Turbulent Nonpremixed Hydrocarbon Flames'

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In deriving the flamelet model for nonpremixed combustion certain terms, but not the unsteady term, are assumed to be negligible. This results in a relation between all reacting scalars and the mixture fraction as independent variable. An ideal test of the flamelet assumption can be based on direct numerical simulation (DNS) data, if all reacting scalars are conditioned on mixture fraction and conditional moments are evaluated. The fundamental assumption of the flamelet model are unwillingly justified. The unsteady and steady formulations of the same equations are compared and found that unsteadiness is important in an unsteady simulation.

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《Combustion and Flame》 |1999年第4期|675-676|共2页
作者
Swaminathan N.; Bilger R.W.;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类燃料与燃烧;
关键词
Flame research; Computer simulation; Combustion; Turbulent flow; Hydrocarbons; Mathematical models; Method of moments; Steady flow; Unsteady flow; Conditional moment closure (CMC) method; Turbulent nonpremixed hydrocarbon flames;

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Comment and reply on the `Assessment of Combustion and Submodels for Turbulent Nonpremixed Hydrocarbon Flames'

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