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A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis
Alternative TitleA novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis
Tang Peng1; Zhang Hongda2; Ye Taohong1; Yu Zhou1; Xia Zhaoyang1
2018
Source Publication应用数学和力学:英文版
ISSN0253-4827
Volume39.0Issue:006Pages:855-866
AbstractThe 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.
Other AbstractThe 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.
Keyword火焰结构 主要部件 化学数据 拉紧 表格 Schmidt PCA 关联系数
Indexed ByCSCD
Language中文
CSCD IDCSCD:6237745
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156275
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
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.
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