A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis

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	A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis
其他题名	A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis
	Tang Peng 1; Zhang Hongda 3; Ye Taohong 1; Yu Zhou 1; Xia Zhaoyang 1
	2018
发表期刊	APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
ISSN	0253-4827
卷号	39 期号:6 页码:855-866
摘要	The principal component analysis (PCA) is used to analyze the high dimensional chemistry data of laminar premixed/stratified flames under strain effects. The first few principal components (PCs), which have larger contribution ratios, are chosen as the tabulated scalars to build the look-up chemistry table. Prior tests show that the strained premixed flame structure can be well reconstructed. To highlight the physical meanings of the tabulated scalars in the stratified flames, a modified PCA method is developed, where the mixture fraction is used to replace one of the PCs with the highest correlation coefficient with a mixture fraction. The other two tabulated scalars are then modified with the Schmidt orthogonalization. The modified tabulated scalars not only have clear physical meanings, but also contain passive scalars. The PCA method has good commonality, and can be extended for building the thermo-chemistry table including strain rate effects when different fuels are used.
其他摘要	The principal component analysis （PCA） is used to analyze the high dimen- sional chemistry data of laminar premixed/stratified flames under strain effects. The first few principal components （PCs） with larger contribution ratios axe chosen as the tabu- lated scalars to build the look-up chemistry table. Prior tests show that strained premixed flame structure can be well reconstructed. To highlight the physical meanings of the tabu- lated scalars in stratified flames, a modified PCA method is developed, where the mixture fraction is used to replace one of the PCs with the highest correlation coefficient. The other two tabulated scalars are then modified with the Schmidt orthogonalization. The modified tabulated scalars not only have clear physical meanings, but also contain passive scalars. The PCA method has good commonality, and can be extended for building the thermo-chemistry table including strain rate effects when different fuels are used.
关键词	GENERATED MANIFOLDS COMBUSTION DEFINITION REDUCTION DENSITY MODELS premixed flame stratified flame strain rate principal component analysis (PCA) chemistry table
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [Natural Key Program of Chizhou University]
CSCD记录号	CSCD:6237745
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/151001
专题	中国科学院金属研究所
作者单位	1.University Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230027, Anhui, Peoples R China 2.池州学院 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Tang Peng,Zhang Hongda,Ye Taohong,et al. A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis[J]. APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,2018,39(6):855-866.
APA	Tang Peng,Zhang Hongda,Ye Taohong,Yu Zhou,&Xia Zhaoyang.(2018).A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis.APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,39(6),855-866.
MLA	Tang Peng,et al."A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis".APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION 39.6(2018):855-866.