基于场量传递的流动-传热-凝固过程耦合计算模型及其应用  

Calculation Model Couple Flow,Heat Transfer and Solidification Process Based on the Fields Transfer and Its Application

作　　者：郑莲宝 李旺 王松伟 徐勇[2] 宋鸿武[2] ZHENG Lianbao;LI Wang;WANG Songwei;XU Yong;SONG Hongwu(Key Laboratory of Ministry of Education for Modern Metallurgy Technology,North China University of Science and Technology,Tangshan 063200,Hebei,China;Shi-Changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]华北理工大学现代冶金技术教育部重点实验室,河北唐山063200 [2]中国科学院金属研究所师昌绪先进材料创新中心,沈阳110016

出　　处：《材料导报》2024年第20期236-242,共7页Materials Reports

基　　金：中国科学院国际合作项目(172GJHZ2022054GC)。

摘　　要：水平连铸是铜板带铸轧加工流程中的重要环节,其核心物理过程包括流动、传热及凝固,实验研究存在诸多不便和局限性,因此往往采用数值模拟方法对铸坯质量和组织进行分析。为进一步提高模拟准确性和完整性,本工作建立了铜板坯水平连铸流动-传热过程与传热-凝固过程耦合数值模型,并设计了不同网格之间的高精度场传递算法;通过控制输入参数和边界条件实现了流动-传热模型和传热-凝固模型之间温度场量一致性,解决了传统模型无法耦合流场计算凝固组织的难题,并通过生产试验证实了耦合模拟结果的准确性。Horizontal continuous casting is an important step in the casting and rolling process of copper strip.Its core physical process includes flow,heat transfer and solidification.The experimental research is inconvenient and limited,so numerical simulation is often used to analyze the quality and structure of the casting billet.In order to further improve the accuracy and completeness of the simulation,a coupling numerical model of flow-heat transfer process and heat-solidification process of copper slab horizontal continuous casting was established,and a high-precision field transfer algorithm between different grids was designed.By controlling the input parameters and boundary conditions,the consistency of the temperature field between the flow-heat transfer model and the heat transfer-solidification model is achieved,which solves the problem that the traditional model cannot couple the flow field to calculate the solidification microstructure,and the accuracy of the coupled simulation results is confirmed through the production test.

关 键 词：水平连铸 温度场 组织场 数值模拟 场量传递 耦合计算 

分 类 号：TG214[金属学及工艺—铸造]