中南大学学报（自然科学版）2016，Vol.47Issue(5)：1767-1773,7.DOI:10.11817/j.issn.1672-7207.2016.05.041
基于递归分析的生物质与惰性颗粒混合流动压差脉动信号混沌分析
Chaotic analysis of pressure fluctuation of quartz sands flow mixed with biomass particles based on recurrence analysis
摘要
Abstract
The recurrence plot (RP) and recurrence quantification analysis (RQA) were used in the chaotic analysis of two-component flow in fluidized-bed. Pressure fluctuation signals generated by the fluidized bed flow were sampled for 10 min, and were analyzed by RP andRQA. The materials of the researchwerethe mixture of biomass(equivalent diameter: 5mm,density: 350 kg/m3) and silica sands(diameter:0.4mm,density:2700 kg/m3). Theresults show that the existence of biomass decreasesthe chaos properties but improvesthe reliability of the dynamic system in the fluidized bed on the bubbling conditions. However, thereisnot obvious regularity on the characteristic value when the velocityis belowthe minimum fluidizing gas velocity and the flow pattern in the bedisclose to fixed bed, which means a strong randomness of the system.关键词
压差脉动/递归定量分析/递归图/生物质/流化床/多相流Key words
pressure fluctuation/recurrence quantification analysis/recurrence plot/biomass/fluidized-bed/multiphase flow分类
化学化工引用本文复制引用
王泽宇,仲兆平,王肖祎,赵凯..基于递归分析的生物质与惰性颗粒混合流动压差脉动信号混沌分析[J].中南大学学报（自然科学版）,2016,47(5):1767-1773,7.基金项目
国家自然科学基金资助项目(51276040)；国家重点基础研究发展计划(973计划)项目(2013CB228106)(Project(51276040) supported bytheNational Natural Science Foundation of China （51276040）
Project(2013CB228106)supported by the National Basic Research Development Program (973 Program) of China) （2013CB228106）
