In this paper, an improved computational fluid dynamic (CFD) model for gas–liquid flow in bubble column was developed using the one-equation Wary–Agarwal (WA) turbulence model coupled with the population balance model (PBM). Through 18 orthogonal test cases, the optimal combination of interfacial force models, including drag force, lift force, turbulent dispersion force. The modified wall lubrication force model was proposed to improve the predictive ability for hydrodynamic behavior near the wall of the bubble column. The values simulated by optimized CFD model were in agreement with experimental data, and the errors were within ± 20%. In addition, the axial velocity, turbulent kinetic energy, bubble size distribution, and the dynamic characteristic of bubble plume were analyzed at different superficial gas velocities. This research work could provide a theoretical basis for the extension of the CFD–PBM coupled model to other multiphase reactors..

在本文中，使用单方程 Wary-Agarwal (WA) 湍流模型和人口平衡模型 (PBM) 开发了一种改进的气泡塔气液流动计算流体动力学 (CFD) 模型。通过18个正交试验案例，优化组合界面力模型，包括阻力、升力、湍流分散力。提出了改进的壁润滑力模型，以提高对气泡柱壁附近流体动力学行为的预测能力。优化后的CFD模型模拟值与实验数据基本吻合，误差在±20%以内。此外，分析了不同表观气体速度下的轴向速度、湍流动能、气泡尺寸分布和气泡羽流的动力学特性。