The 3D GL EM-Flow-Heat-Stress Coupled Modeling
In the steel and metal continuous caster the EM stirring installation plays important role. We have proposed the 3D and 2.5D AGILD effectromagnetic stirring (EMS) modeling in PIERS 2005 in Hangzhou and PIERS 2006 in Cambridge. The AGILD EMS modeling can be used to accurately calculate the EM field in the EM stirring. The effectromagnetic field in the stirring generates the Lorenz force. The voluminal distributed Lorenz force drives the steel and metal liquid rotationally to move under high temperature. Therefore, it is necessary to consider EM, flow, heat, stress coupled effective action in the EM stirring caster. In this paper, we propose a 3D Global and Local GL EM, flow, heat and stress coupled modeling. The inhomogeneous EM, flow, heat, and mechanical parameter domain is divided into a set of several small sub domains. The parameters in the sub domain are isotropic or anisotropic piecewise constant. The initial Global EM, flow, temperature, and displacement field are updated successively by the local scattering field in each sub domain. When all sub domains are scanned, the GL coupled EM, flow, temperature, and displacement field are obtained. In the method, there is no boundary reffection error. There is no big matrix needs to be solved. The coordinate singularity in ρ=0 is removed. The simulations show that our 3D GL EM, flow, heat and stress coupled modeling (EMFHS) is fast, accurate, consistent and stable. The GL EMFHS coupled modeling has wide application in the EM stirring in the cast, atmosphere, environment, geophysics, earth sciences and space sciences and engineering.
G. Xie J. H. Li L. Xie F. Xie J. Li
GL Geophysical Laboratory, USA
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
1002-1008
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）