[1]刘晶峰,赵紫玉,蹇崇军,等.枝晶生长的相场法数值模拟[J].华侨大学学报(自然科学版),2010,31(1):6-11.[doi:10.11830/ISSN.1000-5013.2010.01.0006]
　LIU Jing-feng,ZHAO Zi-yu,JIAN Chong-jun,et al.Numerical Simulation of Dendritic Growth Using Phase-Field Method[J].Journal of Huaqiao University(Natural Science),2010,31(1):6-11.[doi:10.11830/ISSN.1000-5013.2010.01.0006]
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枝晶生长的相场法数值模拟()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第31卷
期数:
2010年第1期
页码:
6-11
栏目:
出版日期:
2010-01-20

文章信息/Info

Title:
Numerical Simulation of Dendritic Growth Using Phase-Field Method
文章编号:
1000-5013(2010)01-0006-06
作者:
刘晶峰; 赵紫玉; 蹇崇军; 江开勇
华侨大学机电与自动化学院
Author(s):
LIU Jing-feng;  ZHAO Zi-yu;  JIAN Chong-jun;  JIANG Kai-yong
College of Mechanical Engineering and Automation, Huaqiao University, Quanzhou 362021, China
关键词:
枝晶生长;  相场法;  过冷熔体;  数值模拟;  形貌
Keywords:
dendritic growth;  phase-field method;  undercooled melt;  numerical simulation;  morphology
分类号:
TG111.4
DOI:
10.11830/ISSN.1000-5013.2010.01.0006
文献标志码:
A
摘要:
利用一个简单的相场模型,对过冷熔体中枝晶的生长形貌进行数值模拟,定性分析各向异性强度、无量纲潜热及扰动因子等对枝晶形貌的影响.结果表明,枝晶主干生长速度随着各向异性强度的增大而增大,并且枝晶结构强烈依赖于各向异性强度; 随着无量纲潜热的增大,晶体生长过程中枝晶结构特征愈加明显; 扰动对枝晶结构特征有一定的影响,随着扰动因子的增加,枝晶间竞争生长加剧.
Abstract:
By a simple phase-field model,a series of numerical simulations for dendritic growth into undercooled melt is performed to show the formation of various dendritic patterns.Qualitative analysis of the influence of the strength of anisotropy,dimensionless latent heat,and noise factor on the shape of crystal growth is given.The results show that the velocity of principal branch growth increases as strength of anisotropy increases and the branch structure is very strongly dependent on strength of anisotropy; as dimensionless latent heat increases,dendritic structures become obvious during grain growth; competition of branches growth becomes strong as noise factor increases.

参考文献/References:

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备注/Memo

备注/Memo:
福建省科技计划重点项目(2008H0028); 华侨大学高层次人才科研启动项目(07BS202)
更新日期/Last Update: 2014-03-23