Phase-field simulation studies of dendrite growth coupling with force flow field

doi:10.4028/www.scientific.net/AMR.1004-1005.1069

	Phase-field simulation studies of dendrite growth coupling with force flow field
	Feng, Li1 ; Zhu, Chang Sheng 1; Lu, Yang 1; Wang, Zhi Ping 1,2; An, Ling Min 1
	2014
会议名称	4th International Conference on Advanced Engineering Materials and Technology, AEMT 2014
会议录名称	Advanced Materials Research
卷号	1004-1005
页码	1069-1075
会议日期	June 14, 2014 - June 15, 2014
会议地点	Xiamen, China
出版者	Trans Tech Publications Ltd
摘要	Coupling the force flow field with the phase field model for the isothermal growth of dendrite, Sola algorithm is used to calculate the flow speed and pressure of liquid metal, Using double grid numerical method to reduce the calculation amount of computer simulation, The space factor and time factor are introduced to improve the accuracy of double grid numerical calculation, Taking Al-2%-Cu alloy as an example, the dendrite growth process of the binary alloy under forced convection environment is simulated; The simulation results can capture the real dendrite growth and interactions of the liquid metal flow in the process of dendrite growth under forced convection environment: In the incident flow regions, the dendrite morphology is complex, the secondary dendrite is lush and the growth speed is fast due to the influence of liquid metal flow. In the back flow regions, the growth of dendrite changes the flowing pressure among the liquid metals, it causes the regional complex flow patterns and there are two opposite eddy current; the grow speed of the main branch which grows perpendicular to the initial flow direction is the fastest and presents tilt growth phenomenon. When the space coefficient value is appropriate, the dual mesh method can save calculation time effectively. © (2014) Trans Tech Publications, Switzerland.
关键词	Algorithms Computer simulation Flow fields Forced convection Phase interfaces Dendrite growth Dendrite morphology Forced flows Numerical calculation Phase field methods Phase field models Phase-field simulation Simulation
DOI	10.4028/www.scientific.net/AMR.1004-1005.1069
收录类别	EI
语种	英语
EI入藏号	20143618139041
EI主题词	Liquid metals
ISSN	10226680
来源库	Compendex
分类代码	531.1 Metallurgy - 631.1 Fluid Flow, General - 723 Computer Software, Data Handling and Applications - 723.5 Computer Applications - 801.4 Physical Chemistry - 921 Mathematics
引用统计	无
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/117778
专题	材料科学与工程学院
作者单位	1.Institute of Material Science and Engineering, Lanzhou University of Technology, Lanzhou, China; 2.Gansu Non-ferrous Metals and Composite Materials Engineering Technology Research Center, lanzhou, China
第一作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Feng, Li,Zhu, Chang Sheng,Lu, Yang,et al. Phase-field simulation studies of dendrite growth coupling with force flow field[C]:Trans Tech Publications Ltd,2014:1069-1075.