| Modeling motion and growth of multiple dendrites during solidification based on vector-valued phase field and two-phase flow models | |
| Ren, Jian-kun1,2; Chen, Yun3; Cao, Yan-fei3; Sun, Ming-yue1,3; Xu, Bin1,3; Li, Dian-zhong3 | |
| Corresponding Author | Sun, Ming-yue(mysun@imr.ac.cn) |
| 2020-12-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 58Pages:171-187 |
| Abstract | Movement and growth of dendrites are common phenomena during solidification. To numerically investigate these phenomena, two-phase flow model is employed to formulate the FSI (fluid-structure interaction) problem during dendritic solidification. In this model, solid is assumed to have huge viscosity to maintain its own shape and an exponential expression is constructed to describe variable viscosity across s-l (solid-liquid) interface. With an effective preconditioner for saddle point structure, we build a N-S (Navier-Stokes) solver robust to tremendous viscosity ratio (as large as 10(10)) between solid and liquid. Polycrystalline solidification is computed by vector-valued phase field model, which is computationally convenient to handle contact between dendrites. Locations of dendrites are updated by solving advection equations. Orientation change due to dendrite's rotation has been considered as well. Calculation is accelerated by two-level time stepping scheme, adaptive mesh refinement, and parallel computation. Settlement and growth of a single dendrite and multiple dendrites in Al-Cu alloy were simulated, showing the availability of the provided model to handle anisotropic growth, motion and impingement of dendrites. This study lays foundation to simulate solidification coupled with deformation in the future. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Phase field Solidification Two-phase flow Dendrite's motion Variable viscosity |
| Funding Organization | National Key Research and Development Program ; National Natural Science Foundation of China ; National Science and Technology Major Project of China ; Key Program of the Chinese Academy of Sciences ; Program ofCAS Interdisciplinary Innovation Team ; Youth Innovation Promotion Association, CAS |
| DOI | 10.1016/j.jmst.2020.05.005 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program[2018YFA0702900] ; National Natural Science Foundation of China[51774265] ; National Natural Science Foundation of China[51701225] ; National Science and Technology Major Project of China[2019ZX06004010] ; Key Program of the Chinese Academy of Sciences[ZDRW-CN-2017-1] ; Program ofCAS Interdisciplinary Innovation Team ; Youth Innovation Promotion Association, CAS |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000574648800021 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/140784 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Ming-yue |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Ren, Jian-kun,Chen, Yun,Cao, Yan-fei,et al. Modeling motion and growth of multiple dendrites during solidification based on vector-valued phase field and two-phase flow models[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,58:171-187. |
| APA | Ren, Jian-kun,Chen, Yun,Cao, Yan-fei,Sun, Ming-yue,Xu, Bin,&Li, Dian-zhong.(2020).Modeling motion and growth of multiple dendrites during solidification based on vector-valued phase field and two-phase flow models.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,58,171-187. |
| MLA | Ren, Jian-kun,et al."Modeling motion and growth of multiple dendrites during solidification based on vector-valued phase field and two-phase flow models".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 58(2020):171-187. |
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