颗粒群组方法中关键参数的选取

为了深入了解颗粒群组方法的特点,提出了修正最大群组数方法,研究了颗粒群组方法中的两个关键参数（体积增量和最大群组数）对数量密度和体积分数的影响.结果表明：传统最大群组数在计算颗粒数量密度时比较准确,修正最大群组数在计算颗粒体积分数时比较准确.随着颗粒体积增量的增加,传统最大群组数得到的颗粒数量密度的预测值降低,而颗粒体积分数的预测值增加.随着颗粒体积增量的增加,修正最大群组数得到的颗粒数量密度的预测值下降,而颗粒体积分数的预测值呈振荡趋势....

Full description

Saved in:
Bibliographic Details
Published in东北大学学报（自然科学版） Vol. 37; no. 4; pp. 508 - 511
Main Author 雷洪 赵岩
Format Journal Article
LanguageChinese
Published 东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳,110819%东北大学冶金学院,辽宁沈阳,110819 2016
Subjects
Smoluchowski模型
最大群组数
碰撞聚合
颗粒
颗粒体积增量
颗粒群组法
collision and aggregation
maximum group number
颗粒体积增量
最大群组数
Smoluchowski model
颗粒
颗粒群组法
particle volume increment
碰撞聚合
particle
particle-size-grouping method
Smoluchowski模型
Online AccessGet full text

Cover

More Information
Summary:为了深入了解颗粒群组方法的特点,提出了修正最大群组数方法,研究了颗粒群组方法中的两个关键参数（体积增量和最大群组数）对数量密度和体积分数的影响.结果表明：传统最大群组数在计算颗粒数量密度时比较准确,修正最大群组数在计算颗粒体积分数时比较准确.随着颗粒体积增量的增加,传统最大群组数得到的颗粒数量密度的预测值降低,而颗粒体积分数的预测值增加.随着颗粒体积增量的增加,修正最大群组数得到的颗粒数量密度的预测值下降,而颗粒体积分数的预测值呈振荡趋势.
Bibliography:particle; collision and aggregation; Smoluchowski model; particle-size-grouping method; particle volume increment; maximum group number
LEI Hong;ZHAO Yan （ 1. Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China; 2. School of Metallurgy, Northeastern University, Shenyang 110819, China.）
21-1344/T
In order to have a deep insight into the particle-size-grouping（ PSG） method,a modified maximum group number method was developed to study the effects of two key parameters（ the particle volume increment and the maximum group number） on the particle number density and volume fraction. The results showed that a more accurate value of the particle number density was obtained by using the PSG method with the traditional maximum group number while a more accurate value of the particle volume fraction was obtained by using the PSG method with the modified maximum group number. With the increase of the particle volume increment,the predicted value of
ISSN:1005-3026
DOI:10.3969/j.issn.1005-3026.2016.04.012