化工学报2024，Vol.75Issue(6)：2214-2221,8.DOI:10.11949/0438-1157.20240194
颗粒体系的多尺度混合指数
Multiscale mixing index for granular systems
摘要
Abstract
Systematic study of the homogeneity of particle mixtures reveals significant multiscale features in mixing process.In particular,homogenous mixtures at macro-scale may display severe heterogeneity at micro-scale,and vice versa.Meanwhile,different particle sampling methods and mixing indexes may yield significantly varied results for the same mixture at same scales.The results indicate that different mixing indices exhibit inconsistency at different scales.A multiscale mixing index using different methods at appropriate scales and characterizing the homogeneity as a distribution over different scales,rather than a single value at an undefined scale,is hence proposed and considered more precise and comprehensive.关键词
颗粒体系/混合/多尺度/离散单元法/莱西指数/相对标准偏差/宏尺度混合/微尺度混合Key words
granular systems/mixing/multiscale/discrete element modeling/Lacey index/relative standard deviation/macromixing/micromixing分类
化学化工引用本文复制引用
徐嘉宇,陈飞国,徐骥,葛蔚..颗粒体系的多尺度混合指数[J].化工学报,2024,75(6):2214-2221,8.基金项目
国家自然科学基金项目(22293024,21821005,22178347) （22293024,21821005,22178347）
中国科学院重点部署项目(JCPYJJ-22040) （JCPYJJ-22040）
