Anisotropic lattice Boltzmann-phase-field modeling of crystal growth with melt convection induced by solid-liquid density change | |
Xing, Hui2; Dong, Xianglei3; Sun, Dongke4,5; Han, Yongsheng1 | |
刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY |
2020-11-15 | |
卷号 | 57页码:26-32 |
关键词 | Dendritic Growth Density Change Melt Convection Phase-field Method |
ISSN号 | 1005-0302 |
DOI | 10.1016/j.jmst.2020.05.011 |
英文摘要 | 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. |
资助项目 | National 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关键词 | Dendritic Growth ; Fluid-flow ; Simulation ; Solidification ; Morphology ; Kinetics ; Scheme |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
语种 | 英语 |
出版者 | JOURNAL MATER SCI TECHNOL |
WOS记录号 | WOS:000572537200003 |
资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; State Key Laboratory of Advanced Special Steel, Shanghai University, China |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/42226] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Xing, Hui; Sun, Dongke |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, EMMS Grp, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Northwestern Polytech Univ, MOE Key Lab Mat Phys & Chem Extraordinary, Shaanxi Key Lab Condensed Matter Struct & Propert, Xian 710129, Peoples R China 3.Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450001, Peoples R China 4.Southeast Univ, Sch Mech Engn, Jiangsu Key Lab Design & Manufacture Micronano Bi, Nanjing 211189, Peoples R China 5.Shanghai Univ, State Key Lab Adv Special Steel, Shanghai Key Lab Adv Ferromet, Shanghai, Peoples R China |
推荐引用方式 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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