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Numerical modeling of equiaxed crystal growth in solidification of binary alloys using a lattice Boltzmann-finite volume scheme
Wang, Xuezhou1; Sun, Dongke1; Xing, Hui2; Han, Yongsheng3; Liu, Yanfei4; Wang, Jincheng5
2020-11-01
Source PublicationCOMPUTATIONAL MATERIALS SCIENCE
ISSN0927-0256
Volume184Pages:10
AbstractA lattice Boltzmann-finite volume scheme is proposed to numerically study the equiaxed crystal growth during binary alloy solidification. In present model, the lattice Boltzmann method is extended to numerically model the growth of equiaxed crystal coupled with solute transfer. An anisotropic lattice Boltzmann equation fitting into the lattice Bhatnagar-Gross-Krook (BGK) scheme is applied to describe the liquid-solid phase changes with interfacial anisotropic effect. Solute transfer is described by the diffusion equation including an anti-trapping current term, which is solved by the finite volume scheme and coupled straightly with the anisotropic lattice Boltzmann equation. After model validation, the hybrid model is applied to numerically simulate the equiaxed crystal growth with single and multiple seeds during Al-Cu solidification. The results demonstrate that the hybrid model is an alternative approach for numerical simulations of equiaxed crystal growth during binary alloy solidification with reliable numerical accuracy and excellent computational efficiency, which has important instructional significance for understanding the underlying mechanism of alloy solidification.
KeywordLattice Boltzmann Crystal growth Binary alloy Phase-field equation Anti-trapping current
DOI10.1016/j.commatsci.2020.109855
Language英语
WOS KeywordPHASE-FIELD MODEL ; DENDRITIC GROWTH ; SIMULATIONS ; CONVECTION ; MICROSTRUCTURES ; MOTION
Funding ProjectNational Natural Science Foundation of China[51701160] ; National Natural Science Foundation of China[21978298] ; State Key Laboratory of Solidification Processing in NPU[SKLSP201901] ; Fundamental Research Funds for the Central Universities[2242019K1G003] ; Fundamental Research Funds for the Central Universities[2242019k30064]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; State Key Laboratory of Solidification Processing in NPU ; Fundamental Research Funds for the Central Universities
WOS IDWOS:000567372100006
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42036
Collection中国科学院过程工程研究所
Corresponding AuthorSun, Dongke
Affiliation1.Southeast Univ, Jiangsu Key Lab Design & Manufacture Micronano Bi, Sch Mech Engn, Nanjing 211189, Peoples R China
2.Northwestern Polytech Univ, Shaanxi Key Lab Condensed Matter Struct & Propert, MOE Key Lab Mat Phys & Chem Extraordinary, Xian 710129, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
4.China Acad Launch Vehicle Technol, R&D Dept, Beijing 100048, Peoples R China
5.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xuezhou,Sun, Dongke,Xing, Hui,et al. Numerical modeling of equiaxed crystal growth in solidification of binary alloys using a lattice Boltzmann-finite volume scheme[J]. COMPUTATIONAL MATERIALS SCIENCE,2020,184:10.
APA Wang, Xuezhou,Sun, Dongke,Xing, Hui,Han, Yongsheng,Liu, Yanfei,&Wang, Jincheng.(2020).Numerical modeling of equiaxed crystal growth in solidification of binary alloys using a lattice Boltzmann-finite volume scheme.COMPUTATIONAL MATERIALS SCIENCE,184,10.
MLA Wang, Xuezhou,et al."Numerical modeling of equiaxed crystal growth in solidification of binary alloys using a lattice Boltzmann-finite volume scheme".COMPUTATIONAL MATERIALS SCIENCE 184(2020):10.
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