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

IMR OpenIR

	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 2; Ye Taohong 1; Yu Zhou 1; Xia Zhaoyang 1
	2018
发表期刊	应用数学和力学：英文版
ISSN	0253-4827
卷号	39.0 期号:006 页码:855-866
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.
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	火焰结构主要部件化学数据拉紧表格 Schmidt PCA 关联系数
收录类别	CSCD
语种	中文
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/321006/156275
专题	中国科学院金属研究所
作者单位	1.中国科学技术大学 2.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]. 应用数学和力学：英文版,2018,39.0(006):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.应用数学和力学：英文版,39.0(006),855-866.
MLA	Tang Peng,et al."A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis".应用数学和力学：英文版 39.0.006(2018):855-866.