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An anisotropic lattice Boltzmann - Phase field scheme for numerical simulations of dendritic growth with melt convection
Sun, Dongke1; Xing, Hui2; Dong, Xianglei3; Han, Yongsheng4
2019-04-01
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN0017-9310
Volume133Pages:1240-1250
Abstract

An anisotropic lattice Boltzman - phase field scheme is proposed to study dendritic growth in the presence of melt convection. In this work, the lattice Boltzmann method is extended to model dendritic growth with heat transfer and melt convection. It implements an anisotropic streaming-relaxation step based on the lattice Bhatnagar-Gross-Krook scheme. Three sets of distribution function are defined to describe the evolution of melt convection, heat transfer and phase transition. The D2Q9 lattice vectors are utilized to describe the advancement of ordering parameter, and coupled with a convective diffusion equation for heat transfer during phase transition. After model validation, dendritic growth with incoming flows and natural convection are numerically investigated, respectively. The results show that the present model is an alternative numerical approach to study convective dendritic growth with relatively high efficiency, and it would like to facilitate the understanding of microstructure evolution in solidification. (C) 2018 Published by Elsevier Ltd.

KeywordLattice Boltzmann Dendritic Growth Microstructure Melt Convection Numerical Simulation
DOI10.1016/j.ijheatmasstransfer.2018.12.095
Language英语
WOS KeywordBoundary-conditions ; Solidification ; Model ; Interface ; Kinetics ; Motion ; Flows
Funding ProjectNational Natural Science Foundation of China[51728601] ; National Natural Science Foundation of China[51771118]
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
Funding OrganizationNational Natural Science Foundation of China
WOS IDWOS:000460710100108
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28268
Collection中国科学院过程工程研究所
Corresponding AuthorSun, Dongke
Affiliation1.Southeast Univ, Sch Mech Engn, Jiangsu Key Lab Design & Mfg Micronano Biomed Ins, Nanjing 211189, Jiangsu, Peoples R China
2.Northwestern Polytech Univ, Shaanxi Key Lab Condensed Matter Struct & Propert, MOE Key Lab Mat Phys & Chem Extraordinary, Xian 710129, Shaanxi, Peoples R China
3.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, EMMS Grp, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Sun, Dongke,Xing, Hui,Dong, Xianglei,et al. An anisotropic lattice Boltzmann - Phase field scheme for numerical simulations of dendritic growth with melt convection[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2019,133:1240-1250.
APA Sun, Dongke,Xing, Hui,Dong, Xianglei,&Han, Yongsheng.(2019).An anisotropic lattice Boltzmann - Phase field scheme for numerical simulations of dendritic growth with melt convection.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,133,1240-1250.
MLA Sun, Dongke,et al."An anisotropic lattice Boltzmann - Phase field scheme for numerical simulations of dendritic growth with melt convection".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 133(2019):1240-1250.
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