Experimental and numerical investigation of two‐phase flow patterns in magnesium electrolysis cell with non‐uniform current density distribution

摘要: In a magnesium electrolysis cell, the electrolyte flow pattern can be affected by chlorine gas bubbles release from anodes. A 2D gas-liquid mathematical model was developed to simulate liquid velocity and volume fraction. Particle Image Velocimetry (PIV) experimental set-up employed determine characteristics of field in cold validate model. The numerical results show good agreement with data. local production rate evolution is related anode current density according Faraday's law. To make bubble generation close reality, non-uniform distribution over surfaces, derived thermoelectric model, has been added as initial boundary conditions. According analysis, use conditions necessary. patterns side channels are found quite different that middle channels, where much lower. It noted both intensity size significantly affect fraction distributions. increased higher intensities larger size, enhanced lower diameters. Additionally, will decrease sharply when diameter smaller than critical value (0.9 mm). better keep for circulation.