A Nonlinear Shallow-Water Model Combined with Gas Bubble Effect for Melt Flows and Interface Instability in Aluminum Reduction Cells
A Nonlinear Shallow-Water Model Combined with Gas Bubble Effect for Melt Flows and Interface Instability in Aluminum Reduction Cells
复制标题
铝电解槽中熔体流动和界面不稳定性的非线性浅水模型与气泡效应相结合
DOI：
10.1007/s11837-013-0762-5
复制
发表时间：
2013-10
期刊：
影响因子：
2.6
通讯作者：
LAI Yan-qing
中科院分区：
文献类型：
--
作者：
XU Yujie;ZHANG Hongliang;LI Jie;LAI Yan-qing
建立了考虑阳极气泡影响的铝电解槽内熔体流动和界面不稳定性的非线性浅水模型。该模型同时考虑了电磁力和气泡对熔池的拖曳力，作为熔体流动的主要驱动力。采用考虑气泡的模型和不考虑气泡的模型进行了对比数值研究。结果表明，在铝电解槽的流体动力学分析中，气泡的影响不可忽略。由气泡运动引起的熔池流动呈现出一系列小涡，而不是金属流动形态所显示的大涡。熔池与熔池层中气泡之间的水平拖曳力在一定程度上增大了金属-熔池界面的变形，但对稳定金属-熔池界面扰动有积极影响。
A nonlinear shallow-water model combined with the effect of anode gas bubbles was derived for the melt flows and interface instability in aluminum reduction cells. Both the electromagnetic forces and the drag forces between the bath and gas bubbles, as the main driven forces for the melt flows, were taken into account in this model. A comparative numerical study was carried out using both the model considering the bubble and the model without considering the bubble. The results show the effect of the bubble cannot be neglected in a fluid dynamics analysis for the aluminum reduction cell. The bath flow, induced by the motion of bubbles, presents a series of small eddies rather than large eddies as the metal flow pattern shows. The horizontal drag forces between the bath and the bubbles in the bath layer enlarge the deformation of the metal–bath interface, to some extent, but have a positive influence on stabilizing the metal–bath interface perturbations.
登录
查看更多内容
影响因子：
2.9
作者：
A. Solheim;S. T. Johansen;S. Rolseth-;J. Thonstad
通讯作者：
A. Solheim;S. T. Johansen;S. Rolseth-;J. Thonstad
影响因子：
3.7
作者：
N. Zabusky;S. Zeng
通讯作者：
N. Zabusky;S. Zeng
DOI：
--
发表时间：
1987
期刊：
--
影响因子：
--
作者：
R. D. Zabreznik
通讯作者：
R. D. Zabreznik
DOI：
10.1007/bf02669338
发表时间：
1977-12
期刊：
Metallurgical Transactions B
影响因子：
--
作者：
Thorleif Sele
通讯作者：
Thorleif Sele
影响因子：
2.6
作者：
Liu, Yexiang;Liu, Wei;Li, Jie;Lai, Yanqing
通讯作者：
Lai, Yanqing