用有限体积法对不同结构的包芯丝喂料球化过程进行数学建模和仿真分析

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-01-01 DOI:10.3934/era.2023202

Huiming Wang, Yimin Shi, Xingshi He, Wenzhi Zhao

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引用次数: 0

摘要

基于有限体积法(FVM)，建立了铁水中包芯线材进给过程的三维动态传热数学模型。计算区域采用三角形和四边形网格划分确定节点和控制体积，采用隐式时间积分法保证计算过程的稳定性。为了揭示芯线的动态传热行为，研究了芯线的温度场变化和爆炸特性。此外，还从理论上计算了包芯线材顶端的熔体损失率以及熔体爆炸深度、铁水温度和包芯线材送料速度之间的关系。更重要的是，考虑了不同芯线结构对镁吸收率的影响。计算结果与实验数据吻合较好，表明现有理论模型具有较好的有效性，可以为铁液球化过程提供理论指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Mathematical modeling and simulation analysis of different structured cored wire feeding spheroidization by finite volume method

A three-dimensional dynamic heat transfer mathematical model of the process when cored wire feed in molten iron is established based on finite volume method (FVM). The calculation area is meshed with triangles and quadrilaterals to determine nodes and control volumes, and implicit time integration method is used to ensure the stability of calculating process. For exposing the dynamic heat transfer behavior, the variation of temperature field and explosion characteristics of cored wires are studied. In addition, the melt loss rate of the top end of cored wire and the correlation among melt explosion depth, molten iron temperature and feeding speed of cored wires are theoretically calculated. More importantly, the influence of different structures of cored wires on the absorption rate of magnesium are considered. The calculation results are in good agreement with the experimental data, which indicate that the existing theoretical model has good validity and can provide theoretical guidance for spheroidization process in molten iron.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.