中文摘要：

引言 鼓泡床或浆态床以具有结构简单、无机械传动部件、相间接触面积大和操作简单等诸多优点而被广泛应用于化工及其相关领域。其中气泡尺寸分布、上升速度及其聚并或破碎行为直接影响到床内流型、气含率分布等流体动力学特性，进而影响到过程的传递行为以及产品的转化率和收率。

英文摘要：

Bubble behavior was observed by rectangular bubble column of 0.20 m （width） using high-speed digital camera in a two-dimensional × 0.02 m （thickness） × 2.00 m （height） .Air and water were used as gas and liquid phases, respectively. Hydrodynamic simulation was conducted in the platform of commercial software package, ANSYS CFX 10.0, by combining the classical two-fluid model of turbulence and GRACE drag model. The computational distributions of bubble size from the MUSIG （multiple size group） model considering bubbles breakup and coalescence were in good agreement with experimental data, which showed that this model could be used to predict the bubble size distribution in the gas-liquid bubble column.