Abstract A laboratory filter-press flow cell with parallel plate electrodes is designed for nickel electrodeposition on mild steel from a diluted solution. Design features, such as electrolyte manifolds and turbulence promoters, produced by 3D printing, following computational fluid dynamics (CFD) simulations, are used to minimize jet flow and edge effects on current density. A hydrodynamic analysis is performed by solving the Reynolds averaged Navier-Stokes (RANS) equations with the k − e turbulence model. The averaged convective-diffusion equation is solved for mass transport simulations, while wall functions are used to simulate tertiary current distribution considering the side reaction of hydrogen evolution (HER). The flow cell design minimizes electrolyte flow and current density edge effects at the entrance to the cell by using an electrolyte manifold followed by polymer mesh turbulence promoter and a flow calming zone before the reaction region of the flow channel. The experimental validation of nickel electrodeposition agrees with the predicted tertiary current distribution profiles.

中文翻译：

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镍电沉积过程中平行板流通池中的流体流动、质量传输和电流分布的模拟

摘要 具有平行板电极的实验室压滤流通池设计用于从稀释溶液在低碳钢上电沉积镍。根据计算流体动力学 (CFD) 模拟，通过 3D 打印产生的设计特征，例如电解质歧管和湍流促进剂，用于最大限度地减少射流和边缘对电流密度的影响。流体动力学分析是通过使用 k − e 湍流模型求解雷诺平均纳维-斯托克斯 (RANS) 方程来执行的。求解平均对流扩散方程用于质量传输模拟，而壁函数用于模拟考虑析氢 (HER) 副反应的三次电流分布。流动池设计通过使用电解质歧管、聚合物网格湍流促进剂和流动通道反应区之前的流动平静区，最大限度地减少了电池入口处的电解质流动和电流密度边缘效应。镍电沉积的实验验证与预测的三次电流分布曲线一致。