| A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis | |
| Alternative Title | A novel method for chemistry tabulation of strained premixed/stratified flames based on principal component analysis |
| Tang Peng1; Zhang Hongda3; Ye Taohong1; Yu Zhou1; Xia Zhaoyang1 | |
| 2018 | |
| Source Publication | APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
 |
| ISSN | 0253-4827 |
| Volume | 39Issue:6Pages:855-866 |
| Abstract | 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. |
| Other Abstract | 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. |
| Keyword | GENERATED MANIFOLDS COMBUSTION DEFINITION REDUCTION DENSITY MODELS premixed flame stratified flame strain rate principal component analysis (PCA) chemistry table |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] ; [Natural Key Program of Chizhou University] |
| CSCD ID | CSCD:6237745 |
| Citation statistics |
Cited Times:1[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/151001 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 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 |
| 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]. 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. |
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