侧吹气流穿透深度及气泡脱离频率模型实验

摘要

The experiment of the penetration depth and the departure frequency of the bubbles by using the imaging method and image processing method for the Immersion Side-Blowing model is performed. The dimensionless empirical formula for bubble penetration depth is obtained at different liquid temperature and gas flow rate through the dimensional analysis, providing a reference to discuss the different characteristics ,mixing intensity, the reaction rate of the gas-liquid flow and stirring intensity .%通过建立侧吹模型实验装置，对侧吹气体的穿透行为和气泡的脱离频率特性进行了实验研究。利用高速摄影仪记录了气体运动过程，并运用Matlab图像处理方法对实验所得气体穿透深度和气泡脱离周期等信息实现了自动提取。在实验结果的基础上，通过量纲分析法得出了本实验侧吹过程中气体在不同液体温度、气体流量条件下的无量纲最大穿透深度的经验公式，从而为讨论不同条件下侧吹气液两相间的反应速率以及搅拌强度等问题提供参考依据。