（e）环状流（Annular Flow）：环状流中贴壁液膜呈现环状形的流动状态， 管道中部为连续的气柱并且夹带水滴，液膜和气流中心之间有波动界面存在。
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⑤液丝环状流（wispy annular flow）：随着扬水量增加，气核中液滴的浓度逐渐加大， 最终，液滴在气核中聚集，导致气核中出现块状或者条 纹状的液体。
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The experimental results show that the main flow regimes in these micro-tubes are the periodic changes of single-liquid flow, slug flow, and annular flow with liquid film surrounded in the micro-tube with inner diameter of 520 and 315μm.
实验结果表明:在内径为520μm和315μm石英玻璃微管内,其流动沸腾的流型以单相液流、泡状流、塞状流和环状流的周期变化为主。
参考来源 - 微细通道内流动沸腾的实验和理论研究·2,447,543篇论文数据，部分数据来源于NoteExpress
对垂直同心环形管内上升气液团状流向环状流的转换进行了研究。
Churn flow and annular flow are common flow patterns encountered in gas-liquid systems through conduits.
该模型认为环状流区域同时存在强制对流与核态沸腾两种换热方式。
The model assumes that forced convection and nucleate boiling coexist in the annular flow regime.
对垂直同心环形管内上升气液环状流的截面含气率及压降预测进行了研究。
In this paper, the prediction of void fraction and pressure drop for upward gas-liquid annular flow in a vertical annulus is studied.
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