文献类型：期刊文献

英文题名：Multifractal detrended fluctuation analysis of combustion flames in four-burner impinging entrained-flow gasifier

作者：Niu, Miao-Ren[1,2];Zhou, Wei-Xing[1,3,4,5,6];Yan, Zhuo-Yong[1,2];Guo, Qing-Hua[1,2];Liang, Qin-Feng[1,2];Wang, Fu-Chen[1,2];Yu, Zun-Hong[1,2]

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Clean Coal Technol, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Sch Business, Shanghai 200237, Peoples R China;[4]E China Univ Sci & Technol, Sch Sci, Shanghai 200237, Peoples R China;[5]E China Univ Sci & Technol, Res Ctr Econophys, Shanghai 200237, Peoples R China;[6]E China Univ Sci & Technol, Res Ctr Syst Engn, Shanghai 200237, Peoples R China

年份：2008

卷号：143

期号：1-3

起止页码：230

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20083611525580);WOS:【SCI-EXPANDED(收录号:WOS:000259850800026)】；

基金：We are grateful to Tao Wu and Gao-Feng Gu for useful discussions. This work was partially supported by the National Basic Research Program of China (No. 2004CB217703), the PCSIRT (IRT0620), the Program for New Century Excellent Talents in University (NCET-05-0413 and NCET-07-0288), and the Project Sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry.

语种：英文

外文关键词：combustion; fractals; multiphase reactors; turbulence; entrained-flow gasifier; flame; multifractal detrended fluctuation analysis

摘要：On a laboratory-scale testing platform of an impinging entrained-flow gasifier with four opposed burners, the flame images for diesel combustion and gasification process were recorded 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 relations in the annealed average of detrended fluctuations were unveiled when the order q > 0, and the multifractal feature of flame images was confirmed. Further analyses identified two multifractal parameters, the minimum and maximum singularities 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. (c) 2008 Elsevier B.V. All rights reserved.