In this work, the effect of nondrag forces (lift force, turbulent dispersion force, wall lubrication force, and virtual mass force) and bubble-induced turbulence (BIT) on the computational fluid dynamics-population balance model (CFD-PBM) simulation of air–water bubble columns operated at 0.01, 0.05, 0.10, 0.11, and 0.23 m/s is investigated. The simulation results indicate that the local gas holdup, axial liquid velocity, global bubble size distribution (BSD), and global Sauter mean diameter are significantly affected by the lift force. Without the lift force, the radial profiles of gas holdup become flatter and the global Sauter mean diameter becomes smaller. The accuracy of simulation results can be improved by considering the lift force. The turbulent dispersion force has a large impact on the local gas holdup. Comparatively, the effect of the wall lubrication force, virtual mass force, and BIT on simulation results is small.

中文翻译：

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气泡塔的CFD-PBM模拟：非拖曳力的灵敏度分析

在这项工作中，非拖曳力（提升力，湍流分散力，壁润滑力和虚拟质量力）和气泡引起的湍流（BIT）对计算流体动力学-人口平衡模型（CFD-PBM）模拟的影响研究了以0.01、0.05、0.10、0.11和0.23 m / s运行的气泡塔。模拟结果表明，局部气体滞留量，轴向液体速度，整体气泡尺寸分布（BSD）和整体Sauter平均直径受提升力的影响很大。没有提升力，气体滞留率的径向分布将变得更平整，而索特的总体平均直径将变小。考虑提升力可以提高仿真结果的准确性。湍流分散力对局部气体滞留量影响很大。比较，