Multifractal detrended fluctuation analysis of combustion flames in four-burner impinging entrained-flow gasifier
| Autor: | Niu, Miao-Ren, Zhou, Wei-Xing, Yan, Zhuo-Yong, Guo, Qing-Hua, Liang, Qin-Feng, Wang, Fu-Chen, Yu, Zun-Hong |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Chemical Engineering Journal 143(1-3), 230-235 (2008) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.cej.2008.04.011 |
| Popis: | On a laboratory-scale testing platform of impinging entrained-flow gasifier with four opposed burners, the flame images for diesel combustion and gasification process were measured with a single charge coupled device (CCD) camera. The two-dimensional multifractal detrended fluctuation analysis was employed to investigate the multifractal nature of the flame images. Sound power-law scaling in the annealed average of detrended fluctuations was unveiled when the order $q>0$ and the multifractal feature of flame images were confirmed. Further analyses identified two multifractal parameters, the minimum and maximum singularity $\alpha_{\min}$ and $\alpha_{\max}$, serving as characteristic parameters of the multifractal flames. These two characteristic multifractal parameters vary with respect to different experimental conditions. Comment: 9 Elsart pages including 7 eps figures |
| Databáze: | arXiv |
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