Bubble cutting was realized by installing a wire mesh in a micro-structured bubble column (MSBC) and studied experimentally with liquid viscosity range from 1 to 39.6 mPa·s. A non-intrusive high-speed camera method was used to determine bubble size and size distribution. The changes of gas holdup, bubble size, size distribution and Sauter mean diameter before and after cutting were systematically studied with mesh openings of 3.8 mm and 5.5 mm. Three novel bubble cutting behaviors with uniform cutting, detachment cutting and indirect cutting behavior were observed. In the presence of two wire meshes, the bubble size distribution roughly shows a Gaussian curve distribution and the peak tends to shift towards lower diameters. With increasing liquid viscosity and superficial gas velocity, the dominant peak tends to move towards higher diameters, resulting in poor mesh cutting effect. After cutting, in the case of two wire meshes, the Sauter mean diameter decreased by 33.5% and 22.2% and the gas holdup increased by 3.2–12.2% and 1.2–4.4%, respectively. For the case of 3.8 mm mesh opening, the interfacial area increased by 10–26%, which is much better than 5.5 mm mesh. The mean bubble size above the mesh will grow again and its growth rate depends on the liquid viscosity.

气泡切割是通过在微结构气泡柱（MSBC）中安装金属丝网实现的，并在液体粘度范围为 1 至 39.6 mPa·s 的情况下进行了实验研究。使用非侵入式高速摄像机方法确定气泡尺寸和尺寸分布。系统研究了3.8 mm和5.5 mm网孔切割前后的含气量、气泡尺寸、尺寸分布和Sauter平均直径的变化。观察到三种新颖的气泡切割行为，即均匀切割、脱离切割和间接切割行为。在存在两个金属丝网的情况下，气泡尺寸分布大致呈高斯曲线分布，峰值趋于向较低直径移动。随着液体粘度和表观气体速度的增加，主峰倾向于向更高的直径移动，导致网格切割效果不佳。切割后，在两个金属丝网的情况下，Sauter 平均直径分别减少了 33.5% 和 22.2%，气体含气率分别增加了 3.2-12.2% 和 1.2-4.4%。对于 3.8 mm 网孔的情况，界面面积增加了 10-26%，远优于 5.5 mm 网孔。网格上方的平均气泡尺寸将再次增长，其增长速度取决于液体粘度。