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Numerical analysis of inclusion motion behavior in electroslag remelting process

机译：电渣重熔过程中夹杂物运动行为的数值分析

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摘要

In order to understand the movement of the inclusion in electroslag remelting (ESR) process, a transient three-dimensional (3D) comprehensive mathematical model has been established. The finite volume method was employed to solve the mass, momentum and energy conservation equations as well as the Maxwell’s equations. The volume of fluid (VOF) approach was used to define the redistribution of the metal and the slag. The inclusion trajectory was described by using the two-way coupled Euler-Lagrange method. Experiments were conducted to verify the proposed model. The removal ratios of the inclusions with 1 µm and 10 µm diameters constantly increase with a larger current. The removal ratios of the inclusions with 3 µm and 5 µm diameters first increase with the current ranging from 1000 A to 1600 A, but then decrease if the current continuously increases to 1800 A. The inclusions with 15 µm and 20 µm diameters are almost completely eliminated in the five currents. The increase of the inclusion density would reduce the removal ratio of the inclusion with a larger diameter in different degrees.
机译：为了了解电渣重熔（ESR）过程中夹杂物的运动，已建立了一个瞬态三维（3D）综合数学模型。有限体积法用于求解质量，动量和能量守恒方程以及麦克斯韦方程。流体体积（VOF）方法用于定义金属和炉渣的重新分布。使用双向耦合欧拉-拉格朗日方法描述了夹杂物的轨迹。进行实验以验证提出的模型。随着电流的增大，直径为1 µm和10 µm的夹杂物的去除率不断提高。直径为3 µm和5 µm的夹杂物的去除率首先随着电流从1000 A到1600 A的增加而增加，但是如果电流持续增加到1800 A，则其去除率会降低；直径为15 µm和20 µm的夹杂物的去除率几乎完全消失。消除了五种潮流。夹杂物密度的增加将以不同程度降低直径较大的夹杂物的去除率。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2018年第10期|1333-1344|共12页
  • 作者

    Qiang Wang; Ruiting Wang; Zhu He; Guangqiang Li; Baokuan Li; Huabing Li;

  • 作者单位

    The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology,Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology;

    The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology,Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology;

    The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology,Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology;

    The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology,Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology;

    School of Metallurgy, Northeastern University;

    School of Metallurgy, Northeastern University;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Electroslag remelting; Inclusion; Movement trajectory; Numerical simulation;

    机译：电渣重熔夹杂物运动轨迹数值模拟;

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