期刊文献+

Numerical and experimental study of radial segregation of bi-disperse particles in a quasi-two-dimensional horizontal rotating drum 被引量:2

原文传递
导出
摘要 Radial segregation easily occurs in a horizontal rotating drum partially filled with particles of different properties under various operational conditions.DEM(discrete element method)simulations and experiments were combined together to investigate the segregation of bi-disperse particles of the same density but unequal sizes in a quasi-two-dimensional horizontal rotating drum.A linear spring-dashpot model was adopted in simulations.An easy and effective image analysis was conducted for the segregation/mixing of particles of different sizes.By comparing the repose angles,degrees of segregation,and particular phenomenon("sun pattern"and reverse segregation)in simulations under different operating conditions with those in experiments,the discrete-element model is verified.The effects of rotational speed and volume ratio on radial segregation are also considered systematically.From an analysis of the results of experiments and simulations,the degree of segregation generally decreases with increasing rotational speed,whereas the volume ratio shows different influences on segregation in different flow regimes.Moreover,the mechanism underlying the reverse segregation in the cataracting regime has been clarified as well.
出处 《Particuology》 SCIE EI CAS CSCD 2020年第4期109-119,共11页 颗粒学报(英文版)
基金 We acknowledge the support of the National Natural Science Foundation of China(NSFC,Grant Nos.21476193.51741608).
  • 相关文献

参考文献2

二级参考文献3

共引文献20

同被引文献9

引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部