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.
参考文献
| [1] | K J Fraser;D Billinghurst;K L Chen;Light Metals, P G Campbell .[J].Warrendale PA TMS USA,1989,219 |
| [2] | D P Ziegler;R L Kozarek;Light Metals;E Rooy .[J].Warrendale PA TMS USA,1991,381 |
| [3] | D Vogelsang;M Segatz;Light Metals .[J].Warrendale PA TMS USA,1991,375 |
| [4] | M Dupuis;I Tabsh;D E Dietrich;M C Yaksh, D F Ostergaard.1994 ANSYS Conference Proceedings-Magnetics Symposium[C].Pittsburgh,PA,USA,1994 |
| [5] | I Tabsh;M Dupius;Light Metals;J Evans .[J].Warrendale PA TMS USA,1995,295 |
| [6] | 李劼,程迎军,赖延清,周乃君.大型预焙铝电解槽电、热场的有限元计算[J].计算物理,2003(04):351-355. |
| [7] | Y Yang;L R Li .[J].Nonferrous Metals,2002,54(03):66. |
| [8] | Z W Yan;Y S Wang;D L Su .[J].Transactions of China Electrotechnical Society,2003,18(05):23. |
| [9] | 姜昌伟,梅炽,周乃君,徐顺生.用标量电位法与双标量磁位法计算铝电解槽三维磁场[J].中国有色金属学报,2003(04):1021-1025. |
| [10] | J K Wu;M Huang;J Huang;Light Metals, W Schneider .[J].Warrendale PA TMS USA,2002,511 |
| [11] | 吴建康,黄珉,黄俊,姚世焕.铝电解槽电解质-铝液流动及铝液表面变形计算[J].中国有色金属学报,2003(01):241-244. |
| [12] | P Zhou;N J Zhou;C Mei .[J].Transactions of Nonferrous Metals Society of China,2003,13(01):209. |
| [13] | Y J Cheng;Master's Thesis .[D].长沙:中南大学,2003. |
| [14] | G Cheng.[J].Light Metals,2000(07):34. |
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