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采用单束伽马射线与高速摄像相结合的方法,利用无干扰动态测量技术对垂直上升管内环状流液膜及扰动波进行了系统性的研究,研究结果表明,在液相折算流速不变时,随着气相折算流速的增高,管壁液膜厚度逐渐减小。当扰动波在管中剧烈变化时,射线计数率较低,反映出液相成分较多,结合环状流扰动波的特性,还研究得出了在流体温度变化范围较小时,温度的改变对计数率影响不大的结论。
The single-beam gamma ray combined with high-speed camera was used to study the annular liquid film and the perturbation wave in the ascending tube by the non-interference dynamic measurement technique. The results show that when the liquid flow rate is constant , With the gas-phase flow rate increases, the thickness of the wall liquid film decreases gradually. When the perturbation wave changes sharply in the tube, the radiation count rate is low, which reflects the more liquid components. Combined with the characteristics of the annular flow disturbing wave, it is also found that when the fluid temperature changes a little, the change of temperature Count rate has little effect.