라그랑지안 조건평균방법을 이용한 난류비예혼합 연소의 LES 해석

Lagrangian conditional moment closure(CMC) is applied to large eddy simulation(LES) to analyze turbulent piloted nonpremixed flame(Sandia flame D). It is assumed that the sequentially injected fuel groups share the conditional flame statistics. Coupling between turbulence and chemistry is considered...

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Bibliographic Details
Published in한국연소학회지 Vol. 23; no. 3; pp. 28 - 35
Main Author 이광구(Gwang Goo Lee)
Format Journal Article
LanguageKorean
Published 한국연소학회 01.09.2018
Subjects
기계공학
Fuel group
Large eddy simulation
Lagrangian conditional moment closure
Turbulent piloted nonpremixed flame
Scalar dissipation rate
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ISSN1226-0959
2466-2089
DOI10.15231/jksc.2018.23.3.028

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Summary:Lagrangian conditional moment closure(CMC) is applied to large eddy simulation(LES) to analyze turbulent piloted nonpremixed flame(Sandia flame D). It is assumed that the sequentially injected fuel groups share the conditional flame statistics. Coupling between turbulence and chemistry is considered in modeling of the conditional scalar dissipation rate(SDR) which is composed of resolved and subgrid scale modeled terms. Since no additional grid system is required for Lagrangian CMC, LES study is possible without large computation burden. The LES-Lagrangian CMC predicts the major scalar variables(temperature, mixture fraction, and mass fractions of CO, OH, H2) consistent with measurements both in physical and mixture fraction spaces. KCI Citation Count: 0
Bibliography:https://www.jkosco.org/articles/article/5K5x/
ISSN:1226-0959
2466-2089
DOI:10.15231/jksc.2018.23.3.028