This paper presents a numerical study of emulsion latex coagulation processes in continuous coagulators based on the full computational fluid dynamics approach. The RANS approach together with the k‐ε turbulence model was used to describe the detailed flow field in the coagulators. The coagulant mixing process was modelled by the convection‐diffusion equation and the emulsion latex coagulation process was formulated by the population balance equation of the particle size with a coagulation kernel including a perikinetic and orthokinetic combined mechanism. The flow and coagulation models were independently validated by means of comparing simulated results to the relevant experimental data from the literature. A series of simulations were carried out to study the effects of coagulator bottom shape, salt solution feeding location, residence time and agitation speed, as well as the influence of four typical scale‐up criteria on the latex particle coagulation process. The presented results would be helpful for the relevant process design, development, and scale‐up of continuous latex coagulators.

中文翻译：

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凝结器中乳胶凝结过程的建模研究

本文基于完整的计算流体动力学方法，对连续凝结器中乳胶凝结过程进行了数值研究。RANS方法与kε湍流模型用于描述凝结器中的详细流场。凝结剂混合过程通过对流扩散方程建模，乳胶凝结过程由颗粒大小的人口平衡方程公式化，凝结核包括蠕动和正动结合机制。通过将模拟结果与文献中的相关实验数据进行比较，对流动和凝结模型进行了独立验证。进行了一系列模拟研究，研究了混凝器底部形状，盐溶液进料位置，停留时间和搅拌速度的影响，以及四种典型的放大标准对乳胶颗粒凝结过程的影响。提出的结果将有助于相关的流程设计，