Zone partitioning sequential calculation method for three-dimensional phase-field material simulation during directional solidification

doi:10.4028/www.scientific.net/KEM.723.400

	Zone partitioning sequential calculation method for three-dimensional phase-field material simulation during directional solidification
	Feng, Li 1,2; Hu, Hai-Huang 1; Jia, Bei-Bei 1; Wang, Gang-Gang 1; Zhu, Chang-Sheng 1; Xiao, Rong-Zhen 1
	2017
会议日期	June 24, 2016 - June 26, 2016
会议地点	Guangzhou, China
关键词	Binary alloys Copper alloys Grain growth Solidification Al-Cu alloys Alloy solidification Dendritic structures Material simulation Memory requirements Phase field methods Phase-field simulation Zone partitioning
卷号	723 KEM
DOI	10.4028/www.scientific.net/KEM.723.400
页码	400-405
英文摘要	Complex dendritic structures can be simulated directly by phase field method. However, phase field method needs a very fine mesh computing and memory requirements. A new calculation method named zone partitioning sequential calculation method is proposed to expand the simulation area of phase field method. The simulation area can be divided into several parts, and the parts can be calculated one by one in a certain order by the new method. This new method can reduce the computing and memory requirements of single calculation, because a part of the simulation area is less than the whole simulation area. Although this method could make error in the interface of different parts of the simulation area when the grains go through the interface, but the error has less effect on the grain growth. By using phase field method, coupled with zone partitioning sequential calculation method, the simulation of the directional solidification process of Al-Cu binary alloy is operated. The results show that the new method can be applied to phase field simulation of binary alloy solidification in a large area. The simulation results have certain accuracy and reliability. © 2017 Trans Tech Publications, Switzerland.
会议录	Key Engineering Materials
会议录出版者	Trans Tech Publications Ltd
语种	英语
ISSN号	10139826
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/118104]
专题	材料科学与工程学院计算机与通信学院
作者单位	1.College of Materials and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Gansu Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Feng, Li,Hu, Hai-Huang,Jia, Bei-Bei,et al. Zone partitioning sequential calculation method for three-dimensional phase-field material simulation during directional solidification[C]. 见:. Guangzhou, China. June 24, 2016 - June 26, 2016.