[1]骆培成,辛传贤,曹翠翠,等.一种计算混合过程尺度变化的新方法[J].东南大学学报(自然科学版),2012,42(6):1238-1242.[doi:10.3969/j.issn.1001-0505.2012.06.039]
 Luo Peicheng,Xin Chuanxian,Cao Cuicui,et al.A new method for determining scale changes in mixing process[J].Journal of Southeast University (Natural Science Edition),2012,42(6):1238-1242.[doi:10.3969/j.issn.1001-0505.2012.06.039]
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一种计算混合过程尺度变化的新方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
42
期数:
2012年第6期
页码:
1238-1242
栏目:
化学化工
出版日期:
2012-11-20

文章信息/Info

Title:
A new method for determining scale changes in mixing process
作者:
骆培成 辛传贤 曹翠翠 赵素青 周建成
东南大学化学化工学院,南京 211189
Author(s):
Luo Peicheng Xin Chuanxian Cao Cuicui Zhao Suqing Zhou Jiancheng
School of Chemistry and Chemical Engineering,Southeast University, Nanjing 211189, China
关键词:
混合 尺度变化 定义 尺度指数 离析尺度
Keywords:
mixing scale change definition index of scale scale of segregation
分类号:
TQ028.8
DOI:
10.3969/j.issn.1001-0505.2012.06.039
摘要:
基于混合区域内子区域之间接触面的性质,提出了一种计算混合过程尺度指数和离析尺度的新方法.尺度指数可以定量表征混合过程中微团的尺度变化,反映了混合体系中微团离析尺度与计算尺度的差异.在一定的计算尺度下,当两组分(或两相)微团互不接触时,尺度指数为1; 当两组分(或两相)微团最大限度相互接触时,体系具有最小尺度指数0.对于特定的混合状态,计算尺度对离析指数的影响较大,在实际应用中计算尺度应小于体系内微团的最小尺度.根据一定计算尺度下尺度指数的计算结果,可以计算出特定混合状态下的离析尺度.离析尺度可以表征混合区域内相互离析的两组分(或两相)微团的尺度大小,反映了混合过程尺度降低的程度.
Abstract:
A new method is proposed to calculate index of scale and scale of segregation of the segregated clusters in the mixing process based on the characteristics of the interfacial face between two neighboring sub-zones. Index of scale is used to evaluate the scale changes of the segregated clusters quantitatively in the mixing process, which indicates the differences between the scale of segregation and the calculating scale. At a given calculating scale, the value of the index of scale is 1 when the clusters of two components(or two phases)segregate from each other completely, and the value becomes 0 when the clusters have the maximum interfacial face. For a certain mixing state, the calculating scale has great effect on the value of index of segregation. In the application, the suggested calculating scale should be smaller than the minimum scale of the segregated clusters in the mixing region. The scale of segregation can be determined by the value of index of scale calculated at a given calculating scale. The calculated scale of segregation reveals the actual size of the segregated clusters of the two components(or two phases)in the mixing zone. It can be used to evaluate the extent to which the scale reductions of the mixing process reach.

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备注/Memo

备注/Memo:
作者简介: 骆培成(1977—),男,博士,副教授,博士生导师,luopeicheng@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(21006011)、江苏省自然科学基金资助项目(BK2010410).
引文格式: 骆培成,辛传贤,曹翠翠,等.一种计算混合过程尺度变化的新方法[J].东南大学学报:自然科学版,2012,42(6):1238-1242. [doi:10.3969/j.issn.1001-0505.2012.06.039]
更新日期/Last Update: 2012-11-20