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Anisotropic lattice Boltzmann-phase-field modeling of crystal growth with melt convection induced by solid-liquid density change
Xing, Hui1; Dong, Xianglei2; Sun, Dongke3,4; Han, Yongsheng5
2020-11-15
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume57Pages:26-32
Abstract

Density change is ubiquitous in phase transformation, and it can induce melt convection which strongly influences the crystal growth. Here, an anisotropic lattice Boltzmann-phase-field method was extended to predict the dendritic growth under the shrinkage or expansion melt convection by density change induced. A novel LB equation with an anisotropic coefficient was constructed to model the advancement of ordering parameter, coupling with the passive scalar LB equation for convective and diffusive heat transfer during phase transition. We studied dendritic growth and shape selection with melt convection induced by density change in crystal growth. Results show that the melt convection induced by density change affects strongly the dendritic growth. The shrinkage flow results in a higher tip velocity while the expansion flow leads to a slower one. Predicted Peclet number with respect to the relative density change was compared with an analytical solution. Moreover, the modified selection parameter has been verified by numerical simulations. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.

KeywordDendritic Growth Density Change Melt Convection Phase-field Method
DOI10.1016/j.jmst.2020.05.011
Language英语
WOS KeywordDendritic Growth ; Fluid-flow ; Simulation ; Solidification ; Morphology ; Kinetics ; Scheme
Funding ProjectNational Natural Science Foundation of China[51701160] ; National Natural Science Foundation of China[51801186] ; National Natural Science Foundation of China[U1862117] ; Fundamental Research Funds for the Central Universities[3102018zy046] ; Fundamental Research Funds for the Central Universities[2242019k1G003] ; State Key Laboratory of Advanced Special Steel, Shanghai University, China[SKLASS2019-16]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; State Key Laboratory of Advanced Special Steel, Shanghai University, China
WOS IDWOS:000572537200003
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42227
Collection中国科学院过程工程研究所
Corresponding AuthorXing, Hui; Sun, Dongke
Affiliation1.Northwestern Polytech Univ, MOE Key Lab Mat Phys & Chem Extraordinary, Shaanxi Key Lab Condensed Matter Struct & Propert, Xian 710129, Peoples R China
2.Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450001, Peoples R China
3.Southeast Univ, Sch Mech Engn, Jiangsu Key Lab Design & Manufacture Micronano Bi, Nanjing 211189, Peoples R China
4.Shanghai Univ, State Key Lab Adv Special Steel, Shanghai Key Lab Adv Ferromet, Shanghai, Peoples R China
5.Chinese Acad Sci, Inst Proc Engn, EMMS Grp, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xing, Hui,Dong, Xianglei,Sun, Dongke,et al. Anisotropic lattice Boltzmann-phase-field modeling of crystal growth with melt convection induced by solid-liquid density change[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,57:26-32.
APA Xing, Hui,Dong, Xianglei,Sun, Dongke,&Han, Yongsheng.(2020).Anisotropic lattice Boltzmann-phase-field modeling of crystal growth with melt convection induced by solid-liquid density change.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,57,26-32.
MLA Xing, Hui,et al."Anisotropic lattice Boltzmann-phase-field modeling of crystal growth with melt convection induced by solid-liquid density change".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 57(2020):26-32.
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