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不同形状混合器中二元颗粒的分聚与混合研究

闫明 段文山 陈琼 周志刚 张昱 赵闯 厚美瑛

闫明, 段文山, 陈琼, 周志刚, 张昱, 赵闯, 厚美瑛. 不同形状混合器中二元颗粒的分聚与混合研究[J]. 力学学报, 2016, 48(1): 64-75. doi: 10.6052/0459-1879-15-292
引用本文: 闫明, 段文山, 陈琼, 周志刚, 张昱, 赵闯, 厚美瑛. 不同形状混合器中二元颗粒的分聚与混合研究[J]. 力学学报, 2016, 48(1): 64-75. doi: 10.6052/0459-1879-15-292
Yan Ming, Duan Wenshan, Chen Qiong, Zhou Zhigang, Zhang Yu, Zhao Chuang, Hou Meiying. THE SEGREGATION AND MIXING OF BINARY GRANULAR SYSTEMS IN ROTATING MIXER WITH DIFFERENT CROSS-SECTIONS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(1): 64-75. doi: 10.6052/0459-1879-15-292
Citation: Yan Ming, Duan Wenshan, Chen Qiong, Zhou Zhigang, Zhang Yu, Zhao Chuang, Hou Meiying. THE SEGREGATION AND MIXING OF BINARY GRANULAR SYSTEMS IN ROTATING MIXER WITH DIFFERENT CROSS-SECTIONS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(1): 64-75. doi: 10.6052/0459-1879-15-292

不同形状混合器中二元颗粒的分聚与混合研究

doi: 10.6052/0459-1879-15-292
基金项目: 国家自然科学基金(11274354,11275156,91226101,11474326),地震行业科研经费(201208011)和中国科学院空间科学战略性先导科技专项(XDA04020200)资助项目.
详细信息
    通讯作者:

    厚美瑛,研究员,主要研究方向:软凝聚态物理,颗粒物质动力学研究.E-mail:mayhou@iphy.ac.cn

  • 中图分类号: O351

THE SEGREGATION AND MIXING OF BINARY GRANULAR SYSTEMS IN ROTATING MIXER WITH DIFFERENT CROSS-SECTIONS

  • 摘要: 采用实验、模拟及理论的分析方法, 研究了在圆形混合器、椭圆形混合器、正方形混合器中, 不同转速和填充率条件下, 容器形状对二元颗粒体系分聚与混合的影响. 实验中通过改变转速与填充率, 可获得不同的颗粒分聚与混合图样, 对示踪颗粒运动轨迹的分析发现, 在圆形混合器中, 随着混合器转速的增大, 颗粒在径向的随机性减少;在正方形混合器中, 随着混合器转速的增大, 颗粒在径向的随机性增大.模拟结果发现颗粒流动分为两个区域, 在表面的快速流动和在整体的旋转运动. 通过理论分析发现颗粒分聚在圆形混合器中最明显, 在正方形混合器中最弱, 椭圆形混合器介于二者之间.

     

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出版历程
  • 收稿日期:  2015-07-30
  • 修回日期:  2015-08-07
  • 刊出日期:  2016-01-18

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