气液固搅拌槽内颗粒团聚和分散行为柱状图表征(英文)  

Histogram Characterization of Particle Aggregation and Dispersion in a Gas-Liquid-Solid Stirred Tank

作　　者：徐建新[1,2] 桑秀丽[1,2] 肖汉杰[1] 王仕博[2] 王华[2] 

机构地区：[1]昆明理工大学质量发展研究院,云南昆明650093 [2]昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室,云南昆明650093

出　　处：《昆明理工大学学报（自然科学版）》2014年第2期63-69,共7页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：NSFC-Yunnan Joint Fund Project(U0937604);Kunming University of Science and Technology Fund Projects(KKSY201258156);Yunnan Province Natural Science Foundation Projects(2013FB020)

摘　　要：在贝蒂数时间序列分析的基础上引入柱状图表征多相混合过程中颗粒团聚和分散行为.贝蒂数可以表征颗粒混合效果,利用柱状图分析来评估贝蒂数的密度并绘制图形.实验分析的结果显示最好的混合效果对应于最佳的第0维贝蒂数和第1维贝蒂数正态分布拟合曲线,同样也证明了我们先前优化模型的准确性.特别是通过第1维贝蒂数时间序列拟合正态分布的方法,非正常的多相混合效果能够以图形的方式进行区分.本研究对于优化搅拌槽的设计、提高搅拌效率具有积极的意义.This work introduces histograms for the characterization of particle aggregation and dispersion in multiphase mixing process based on Betti numbers time series analysis.Histogram analysis is used for estimation of density and plotting the density of Betti numbers for characterizing the effects of particle mixing.Experimental results show that the best mixing effect corresponds to the best-fitting normal distribution of the zeroth and first Betti numbers data, which gives evidence to the accuracy of our previous optimized experimental model.Particularly,by the method of fit-ting Normal distribution of the first Betti numbers,the abnormal mixing effect could be distinguished graphically.This study is of positive significance for optimizing the design of the stirred tank and improving stirring efficiency.

关 键 词：柱状图 贝蒂数 颗粒 混合 团聚 

分 类 号：TQ027[化学工程]