STUDY OF MAGNETOHYDRODYNAMICS STABILITY OF AN ALUMINUM REDUCTION CELL
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摘要: 工业铝电解槽稳定性是铝电解生产中最重要的关键 问题之一.本文综述近20多年来国际铝电解槽稳定性研究的历史、现状和当前最新进展.主要内容包括铝电解槽稳定性的物理表观现象、磁流体(MHD)不稳定性机理、数学定义和判剧、三维和二维稳定性数学模型和数值求解方法(有限元法和谱方法), 同时给出230KA铝电解槽的稳定性分析算例.Abstract: Stability of an aluminum reduction cell is one of the key technologies in the aluminum electrolyte industry. This paper reviews its historical development, current status and new advances in the past two decades. The physical phenomenon of reduction cell stability and the mechanism of magneto-hydrodynamics stability are explained. The mathematical definition and criteria of stability are given. This paper also presents 2D and 3D mathematical models and numerical methods for stability analysis (finite element method and spectral method). Finally, a stability analysis of a 230KA reduction cell is carried out in this paper.
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Key words:
- aluminum reduction cell /
- magneto-hydrodynamics stability /
- FEM
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