文献类型：期刊文献

中文题名：热镀锌锌锅的电磁-流体耦合计算

英文题名：Calculation of the Coupled Electromagnetic and Flow Fields in a Hot Dip Galvanlzing Bath

作者：朱路[1];唐成龙[2];赖焕新[1]

机构：[1]华东理工大学承压系统与安全教育部重点实验室,上海200237;[2]宝山钢铁股份有限公司,上海201900

年份：2014

卷号：40

期号：4

起止页码：533

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

语种：中文

中文关键词：热镀锌;锌锅;电磁场-流场;耦合计算

外文关键词：hot dip galvanizing; zinc pot; electro-hydrodynamics; coupling

摘要：在锌锅的流动及传热状态的数值模拟中,感应加热器边界条件的处理是计算的关键和难点。以某连续热镀锌锌锅作为研究对象,采用ANSYS软件的电磁场模块,计算得到锌锅加热器中洛仑兹力及焦耳热的分布,并将其作为加热器区域流场计算时动量及能量的源项,从而实现了对加热器中电磁场和流场耦合的锌锅全场计算。与前人给定热流密度的处理方法相比较,本文方法更真实地逼近了实际物理模型与过程。计算结果表明,熔沟中的锌液在洛仑兹力作用下呈螺旋状地由中心熔沟向两侧熔沟流动,加热器出口截面上的最大速度约为0.77m/s,大部分区域中的速度均大于0.3m/s,计算结果与文献中实际锌锅运行时的数据吻合良好,表明了本文方法的正确性和有效性。
Treatment of the boundary conditions in the inductor channel has been a key point in the simulation of heat and flows in the molten zinc pot. In this paper, the Lorentz force and Joule heat are obtained by calculating the electromagnetic fields, using a commercial CFD package, the ANSYS. The results of the Lorentz force and the Joule heat are then added to momentum and energy equations, respectively, as the additional sources posed by the electromagnetic field. The heat and fluid flows in the galvanizing bath is solved by using the CFX software, and the distributions of the flow and the temperature fields in the zinc pot are analyzed. The results show that molten zinc moves from the middle to the two sides of the channel. The crest value of the velocity is about 0.77 m/s while in most of the flow zone the velocity is above 0.3 m/s. These results agree well with the actual physical model, and the calculated hear flux is in good consistence with the empirical data. Therefore, the proposed coupled boundary conditions for the inductor channel by the present paper is validated.