基于电磁场和多相湍流场的双向耦合强电流镁电解槽内多物理场耦合特性基础研究

项目名称： 基于电磁场和多相湍流场的双向耦合强电流镁电解槽内多物理场耦合特性基础研究

项目编号： No.21206038

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 化学工程及工业化学

项目作者： 孙泽

作者单位： 华东理工大学

项目金额： 25万元

中文摘要： 由于磁流体效应，高电流强度的电解槽内电磁场作用不可忽视，同时大型电解槽内部多相湍流流场分布引起电荷重新分布会反作用于电磁场。针对强电流镁电解电化学过程，本项目拟研究电磁场和多相湍流流场的双向耦合机理：建立基于电磁场和多相湍流流场双向耦合的数学模型，采用数值计算模拟的方法进行物理场的耦合计算；利用雷诺时均湍流模型和大涡模拟研究多相磁流体湍流运动规律；运用相似原理及三维流场的示踪测定方法，得到不同规模冷模实验的流场数据，再结合工业运行数据，完善描述双向耦合多维模型和电化学反应器放大规律；为设计大电流、低能耗镁电解槽奠定理论基础。

中文关键词： 镁电解；多物理场；耦合计算；；

英文摘要： The effects of electromagnetic field can't be ignored in a magnesium electrolysis cell of high current because of magnetohydrodynamics. Meanwhile, the new distribution of ions will change the distribution of magnetic field due to movement of turbulent multi-phases. For electrochemical process of magnesium under high current, coupling mechanism between electromagnetic field and multi-phase turbulent field is studied. Mathematical model of interactional coupling between electromagnetic field and multi-phase turbulent field will be built. The numerical simulation will be used to solve the coupling model. The principles of turbulence for multi-phase magnetohydrodynamics will be understanded by Reynolds-averaged Navier-Stokes equations and large eddy simulation. Data of different cold models will be obtained by Volumetric 3-Component Velocimetry System and similarity principles. Then, considering the data from industry, the rulers of scaling and mechanism of interactional coupling model will be got in multi-dimensions. The theoretical base can be made by the results of this project for designing high current and low energy consumption cell of magnesium electrolysis.

英文关键词： Magnesium electrolysis；Multi-physical fields；Coupling calculation；；