Small-scale air–water experiments reported here contain all the important features of the industrial caster, the mold feed pipe, and the nozzles associated with it. The liquid is introduced into the feed pipe through an annulus with the gas entering at the center. The liquid travels down the walls of the feed pipe as a film until it encounters the pipe section containing a two-phase (air–water) bubbly mixture. Drift-flux relations are derived to compute the flow parameters (gas void fraction, horizontal velocity of the jet, etc.), which are found to be in good agreement with observations. The direction of the two-phase bubbly jet emerging from the nozzle is quantified, showing an improved downward deflection angle.

中文翻译：

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铸钢模型在水箱内淹没式气泡水射流的实验研究

此处报道的小规模气水实验包含了工业脚轮，铸型送料管以及与其相关的喷嘴的所有重要特征。液体通过环空引入进料管，气体从中心进入。液体以薄膜的形式向下流进进料管的壁，直到遇到包含两相（空气-水）起泡混合物的管段。推导了流通量关系来计算流量参数（气体空隙率，射流的水平速度等），这些参数与观测值非常吻合。定量了从喷嘴出来的两相气泡喷射的方向，显示出改善的向下偏转角。