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Large eddy simulation of turbulent premixed and stratified combustion using flame surface density model coupled with tabulation method
Alternative TitleLarge eddy simulation of turbulent premixed and stratified combustion using flame surface density model coupled with tabulation method
Yu Zhou1; Zhang Hongda2; Ye Taohong1; Zhu Minming1
2018
Source Publication应用数学和力学:英文版
ISSN0253-4827
Volume39.0Issue:012Pages:1719-1736
AbstractLarge eddy simulations(LESs)are performed to investigate the Cambridge premixed and stratified flames,SwB1 and SwB5,respectively.The flame surface density(FSD)model incorporated with two different wrinkling factor models,i.e.,the Mup-pala and Charlette2 wrinkling factor models,is used to describe combustion/turbulence interaction,and the flamelet generated manifolds(FGM)method is employed to deter-mine major scalars.This coupled sub-grid scale(SGS)combustion model is named as the FSD-FGM model.The FGM method can provide the detailed species in the flame which cannot be obtained from the origin FSD model.The LES results show that the FSD-FGM model has the ability of describing flame propagation,especially for strati-fied flames.The Charlette2 wrinkling factor model performs better than the Muppala wrinkling factor model in predicting the flame surface area change by the turbulence.The combustion characteristics are analyzed in detail by the flame index and probability distributions of the equivalence ratio and the orientation angle,which confirms that for the investigated stratified flame,the dominant combustion modes in the upstream and downstream regions are the premixed mode and the back-supported mode,respectively.
Other AbstractLarge eddy simulations (LESs) are performed to investigate the Cambridge premixed and stratified flames, SwB1 and SwB5, respectively. The flame surface density (FSD) model incorporated with two different wrinkling factor models, i.e., the Muppala and Charlette2 wrinkling factor models, is used to describe combustion/turbulence interaction, and the flamelet generated manifolds (FGM) method is employed to determine major scalars. This coupled sub-grid scale (SGS) combustion model is named as the FSD-FGM model. The FGM method can provide the detailed species in the flame which cannot be obtained from the origin FSD model. The LES results show that the FSD-FGM model has the ability of describing flame propagation, especially for stratified flames. The Charlette2 wrinkling factor model performs better than the Muppala wrinkling factor model in predicting the flame surface area change by the turbulence. The combustion characteristics are analyzed in detail by the flame index and probability distributions of the equivalence ratio and the orientation angle, which confirms that for the investigated stratified flame, the dominant combustion modes in the upstream and downstream regions are the premixed mode and the back-supported mode, respectively.
Keywordlarge eddy simulation(LES) flame surface density(FSD)model tabula-tion premixed combustion stratified combustion
Indexed ByCSCD
Language中文
CSCD IDCSCD:6376239
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/146616
Collection中国科学院金属研究所
Affiliation1.中国科学技术大学
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Yu Zhou,Zhang Hongda,Ye Taohong,et al. Large eddy simulation of turbulent premixed and stratified combustion using flame surface density model coupled with tabulation method[J]. 应用数学和力学:英文版,2018,39.0(012):1719-1736.
APA Yu Zhou,Zhang Hongda,Ye Taohong,&Zhu Minming.(2018).Large eddy simulation of turbulent premixed and stratified combustion using flame surface density model coupled with tabulation method.应用数学和力学:英文版,39.0(012),1719-1736.
MLA Yu Zhou,et al."Large eddy simulation of turbulent premixed and stratified combustion using flame surface density model coupled with tabulation method".应用数学和力学:英文版 39.0.012(2018):1719-1736.
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