Phase field study of the tip operating state of a freely growing dendrite against convection using a novel parallel multigrid approach

Z. Guo; J. Mi; S. Xiong; P.S. Grant

首页> 外文期刊>Journal of Computational Physics >Phase field study of the tip operating state of a freely growing dendrite against convection using a novel parallel multigrid approach

【24h】

Phase field study of the tip operating state of a freely growing dendrite against convection using a novel parallel multigrid approach

机译：使用新颖的平行多重网格方法自由生长的树枝状晶体对流的尖端工作状态的相场研究

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Alloy dendrite growth during solidification with coupled thermal-solute-convection fields has been studied by phase field modeling and simulation. The coupled transport equations were solved using a novel parallel-multigrid numerical approach with high computational efficiency that has enabled the investigation of dendrite growth with realistic alloy values of Lewis number ~10~4 and Prandtl number ~10~(-2). The detailed dendrite tip shape and character were compared with widely recognized analytical approaches to show validity, and shown to be highly dependent on undercooling, solute concentration and Lewis number. In a relatively low flow velocity regime, variations in the ratio of growth selection parameter with and without convection agreed well with theory.

机译：通过相场建模和仿真研究了具有耦合的热-溶质-对流场的凝固过程中合金枝晶的生长。耦合的输运方程使用新颖的并行多重网格数值方法求解，具有很高的计算效率，该方法使得能够研究路易斯数为〜10〜4和普朗特数为〜10〜（-2）的实际合金值的枝晶生长。详细的枝晶尖端形状和特征与公认的分析方法进行了比较，以显示其有效性，并显示出高度依赖于过冷，溶质浓度和路易斯数。在相对较低的流速条件下，有和没有对流的生长选择参数比率的变化与理论吻合得很好。

著录项

来源
《Journal of Computational Physics》 |2014年第1期|共20页
作者
Z. Guo; J. Mi; S. Xiong; P.S. Grant;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类数学物理方法;
关键词
Dendrite formation; Phase-field method; Solidification microstructure; Parallel computing;

机译：树突形成;相场法;凝固组织;并行计算;

相似文献

外文文献
中文文献
专利

1. Phase field study of the tip operating state of a freely growing dendrite against convection using a novel parallel multigrid approach [J] . Z. Guo, J. Mi, S. Xiong, Journal of Computational Physics . 2014,第Pta1期

机译：使用新颖的平行多重网格方法自由生长的树枝状晶体对流的尖端工作状态的相场研究
2. Acceleration of phase-field lattice Boltzmann simulation of dendrite growth with thermosolutal convection by the multi-GPUs parallel computation with multiple mesh and time step method [J] . Sakane Shinji, Takaki Tomohiro, Ohno Munekazu, Modelling and simulation in materials science and engineering . 2019,第5期

机译：用多GPU并行计算与多网格和时间步骤方法的多GPU并行计算枝晶晶格Boltzmann模拟枝晶叶片模拟
3. Large-scale phase-field lattice Boltzmann study on the effects of natural convection on dendrite morphology formed during directional solidification of a binary alloy [J] . Takaki Tomohiro, Sakane Shinji, Ohno Munekazu, Computational Materials Science . 2020,第期

机译：大型相位晶格Boltzmann对二元合金定向凝固过程中形成的枝晶形态的影响研究
4. Study of Dendrite Growth Under Forced Convection in Superalloy Solidification by Multiphase-Field Coupled Lattice Boltzmann Method [C] . Cong Yang, Qingyan Xu, Baicheng Liu TMS annual meeting exhibition . 2019

机译：多相场耦合格子玻尔兹曼法研究高温合金凝固中强对流下枝晶的生长
5. Highly parallel recordings of unit and local field potentials with active and passive neural probes in freely-moving animals. [D] . Jamieson, Brian Glenn. 2003

机译：主动和被动神经探针在活动自如的动物中高度平行地记录单位和局部场电势。
6. Degenerate seaweed to tilted dendrite transition and their growth dynamics in directional solidification of non-axially oriented crystals: a phase-field study [O] . Hui Xing, Xianglei Dong, Hongjing Wu, -1

机译：退化海藻到倾斜枝晶转变及其在非轴向取向晶体定向凝固中的生长动力学：一个相场研究
7. Parallel Implementation of an Adaptive, Multigrid Solver for the Implicit Solution of Nonlinear Parabolic Systems, with Application to a Multi-Phase-Field Model for Tumour Growth [O] . Yang FW, Goodyer CE, Hubbard ME, 2015

机译：非线性抛物方程组隐式解的自适应多重网格求解器的并行实现及其在肿瘤生长多相场模型中的应用
8. An Efficient Parallel Multigrid Solver for 3-D Convection-Dominated Problems [R] . Llorente, Ignacio M., Prieto-Matias, Manuel, Diskin, Boris 2000

机译：一种用于三维对流占优问题的高效并行多重网格求解器

Phase field study of the tip operating state of a freely growing dendrite against convection using a novel parallel multigrid approach

摘要

著录项

相似文献

相关主题

期刊订阅