Numerical simulation of flow and heat transfer of continous cast steel slab under traveling magnetic field

查看全文 作　　者：Gong [1]Haijun;Li [1]Xinzhong;Fan [1]Xueyi;Qie [1]Juhong;Xu [1]Daming;Guo [1]Jingjie

机构地区：[1]School of Materials Science and Engineering,Harbin Institute of Technology

出　　处：《China Foundry》索引2013年第10卷第2期,共7页

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 50801019 and 51071062);the State Key Lab of Advanced Metals Materials (Grant No. 2009ZD-06);the National Key Basic Research and Development Program (973) of China (Grant No. 2011CB605504) 摘　　要：A unified numerical model for simulating solidification transport phenomena (STP) of steel slab in electromagnetic continuous casting (EMCC) process was developed. In order to solve the multi-physics fields coupled problem conveniently, the complicated bidirectional coupled process between EM and STP was simplified as a unidirectional one, and a FEM/FVM-combined numerical simulation technique was adopted. The traveling magnetic fields (TMFs) applied to the EMCC process were calculated using the ANSYS11.0 software, and then the EM-data output by ANSYS were converted to FVM-format using a data-format conversion program developed previously. Thereafter, the governing equations were solved using a pressure-based Direct-SIMPLE algorithm. The simulation results of the STP in CC-process show that, due to the influences of Lorentz force and Joule heat, the two strong circulating flows and the temperature field can be obviously damped and changed once TMF with one pair of poles (1-POPs) or 2-POPs is applied, which would accordingly improve the quality of casting. It was found in the present research that the integrated actions of 2-POPs TMF are superior to 1-POPs. All the computations indicate that the present numerical model of EM-STP as well as the FEM/FVM-combined technique is successful. 关键词：continuous casting flow field electromagnetic field ANSYS Direct-SIMPLE algorithm FEM/FVM

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Numerical simulation of flow and heat transfer of continous cast steel slab under traveling magnetic field

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