文献类型：期刊文献

英文题名：3D and 2D experimental views on the flow field of gas-evolving electrode cold model for electrolysis magnesium

作者：Liu, Chenglin[1];Sun, Ze[1];Lu, Guimin[1];Song, Xingfu[1];Yu, Jianguo[1]

机构：[1]E China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake R, Shanghai 200237, Peoples R China

年份：2015

卷号：45

起止页码：415

外文期刊名：FLOW MEASUREMENT AND INSTRUMENTATION

收录：;EI(收录号：20153101099726);WOS:【SCI-EXPANDED(收录号:WOS:000362604900046)】；

基金：We acknowledge the financial support provided by the National Natural Science Foundation of China (Grant 21206038), the Specialized Research Fund for the Doctoral Program of Higher Education (New Teachers) (Grant 20120074120014), and the Fundamental Research Funds for the Central Universities (Grant WB1414046).

语种：英文

外文关键词：Gas-evolving electrodes; Particle image velocimetry; Three-dimensional measurement; Two-phase flow; Volumetric three-component velocimetry

摘要：In the magnesium electrolysis process, chlorine gas bubbles release at the surfaces of anode and affect electrolyte flow patterns. This paper presents an experimental apparatus to simulate the flow field induced by chlorine gas evolution at the gas-evolving electrodes of magnesium electrolysis cell. The three-dimensional flow structures were determined by using volumetric three-component velocimetry (V3V) technique, which has the ability to capture the out-of-plane velocity component. The three-dimensional flow structures in the region with a depth about 120 mm can be obtained. To achieve this, approximately 15,000 three-dimensional velocity vectors were detected in the flow measurements and constituted the three-dimensional flow field, which eliminated the perspective error caused by the out-of-plane motion in Particle Image Velocimetry (Ply) method. In experiments, comparisons are made between the V3V and PIV results. The in-of-plane velocities data obtained by V3V technique have the same trend with the Ply results, and V3V provides more details in the third direction for the flow field accurately. (C) 2015 Elsevier Ltd. All rights reserved.