Abstract The air-blast atomization with bubbles in the liquid jet was investigated using the high-speed camera and Malvern laser particle size analyzer. The gas was aerated into the liquid jet to form the gas-liquid mixture, which would be atomized by the co-flowing air stream. Results show that droplet size D32 decreases at the beginning and then increases with the volumetric flow rate of the aerating gas. A formula was derived to delineate the nonmonotonic trend of the droplet size. The relative deviations between the predicted results and experimental results are less than ±5%. A contour map describing the dependence of the droplet size on the aerating gas, liquid jet, and co-flowing air stream was obtained, which could provide some guidance for the further investigations and industrial applications.

中文翻译：

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液体射流中气泡对鼓风雾化的影响

摘要 利用高速相机和马尔文激光粒度分析仪研究了液体射流中气泡雾化。气体被充气到液体射流中以形成气液混合物，该混合物将被并流的空气流雾化。结果表明，液滴尺寸 D32 在开始时减小，然后随着充气气体的体积流量增加。推导出一个公式来描绘液滴尺寸的非单调趋势。预测结果与实验结果的相对偏差小于±5%。获得了描述液滴尺寸对曝气气体、液体射流和共流气流的依赖性的等高线图，可为进一步研究和工业应用提供一些指导。