›› 2007, Vol. 7 ›› Issue (2): 235-240.
• 流动与传递 • 上一篇 下一篇
夏小霞,王志奇,周乃君
出版日期:
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XIA Xiao-xia,WANG Zhi-qi,ZHOU Nai-jun
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摘要: 通过适当的简化,建立了铝电解槽内电解质运动的物理模型和数学模型,以商业CFD软件为平台,分别对电磁力作用、阳极气体作用以及电磁力和阳极气体共同作用3种情况下的电解质运动进行了数值模拟. 研究结果表明,电磁力作用时,电解质以水平运动为主,半槽的电解质流场基本上呈现一个大涡的结构;阳极气体作用时,电解质运动主要是以每个阳极周围的小循环为主;电磁力和阳极气体共同作用时,电解质流场与阳极气体作用时几乎完全相同,这说明阳极气体对电解质流场起主要作用.
关键词: 铝电解槽, 电解质运动, 电磁力, 阳极气体, 数值模拟
Abstract: Physical and numerical models of the electrolyte flow in aluminum reduction cells were established by means of appropriate simplification. Based on the commercial CFD software, the electrolyte flow was numerically simulated in three cases, i.e., the flow induced by electromagnetic force, the flow driven by anode gas, and the flow driven simultaneously by the above two forces, respectively. The results indicate that the electrolyte flow induced by electromagnetic force produces a large eddy pattern predominately in the horizontal direction. The electrolyte flow driven by anode gas is a local circulation around each anode. The electrolyte flow driven by the combination of the above two forces is similar to the sole anode gas driven case, which indicates that the electrolyte flow field is mainly determined by the anode gas.
Key words: aluminum reduction cells, electrolyte flow, electromagnetic force, anode gas, numerical simulation
夏小霞;王志奇;周乃君. 铝电解槽内电解质运动的数值模拟[J]. , 2007, 7(2): 235-240.
XIA Xiao-xia;WANG Zhi-qi;ZHOU Nai-jun. Numerical Simulation of Electrolyte Flow in Aluminum Reduction Cells[J]. , 2007, 7(2): 235-240.
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