J. Li
,
W. Liu
,
Y.Q. Lai
,
null
,
null
金属学报(英文版)
Two full 3D steady mathematical models are developed by finite element method (FEM) to calculate coupled physics fields: the electro-magnetic model is built and solved first and so is the fluid motion model with the acquired electromagnetic force as source body forces in Navier-Stokes equations. Effects caused by the ferromagnetic shell, busbar system around, and open boundary problem as well as inside induced current were considered in terms of the magnetic field. Furthermore, a new modeling method is found to set up solid models and then mesh them entirely with so-called structuralized grids, namely hex-mesh. Examples of 75kA prebaked cell with two kinds of busbar arrangements are presented. Results agree with those disclosed in the literature and confirm that the coupled simulation is valid. It is also concluded that the usage of these models facilitates the consistent analysis of the electric field to magnetic field and then flow motion to the greater extent, local distributions of current density and magnetic flux density are very much dependent on the cell structure, the steel shell is a shield to reduce the magnetic field and flow pattern is two dimensional in the main body of the metal pad.
关键词:
coupled simulation
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null
,
null
,
null
,
null
吕树欣
,
刘涌
,
宋晨路
,
汪建勋
,
韩高荣
材料科学与工程学报
采用数值模拟方法,对火焰空间和玻璃池窑之间的热耦合模拟可行性进行研究,以玻璃液表面中轴线温度偏差作为比较标准,判断热耦合过程是否收敛。研究结果表明：在六至七次循环迭代后计算结果可收敛,而且热耦合模拟的收敛速度与给定的初始条件有关。建立燃天然气富氧助燃玻璃熔窑模型,与火焰空间、玻璃池窑单独模拟相比,热耦合模拟的结果能够更准确地反映喷枪燃料分布等条件对玻璃液流动情况及温度分布的影响,更为细致全面地模拟出玻璃液表面热传输的不均匀性。
关键词:
火焰空间
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玻璃液
,
耦合模拟
