| 管束间气液两相过渡流型及其压力波动特性 |
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| 引用本文： | 洪文鹏,刘燕,周云龙.管束间气液两相过渡流型及其压力波动特性[J].中国电机工程学报,2011,31(32). |
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| 作者姓名： | 洪文鹏 刘燕 周云龙 |
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| 作者单位： | 东北电力大学能源与动力工程学院,吉林省吉林市,132012 |
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| 摘 要： | 采用高速摄像技术对矩形通道内气液两相流体垂直向上横掠2种节距比顺列管束的过渡流型及压差信号进行实验研究,在泡状流流动过程中拍摄到了S形泡状流。分析了各种流型转变的机制,基于实验数据绘制了流型界限图。对比分析了2种管束间不同过渡流型的压差波动信号,发现从泡状流到间歇流再到雾状流压差信号呈减小趋势。2种管束的压差信号波动幅值不同,节距比大的压差信号波动幅值大。实验发现气液两相折算速度对压差信号的波动有明显影响。
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| 关 键 词： | 气液两相流 顺列管束 高速摄像 过渡流型 压差信号 |
The Flow Pattern and Differential Pressure Fluctuations of Gas-liquid Two-phase Flow Across Tube Bundles |
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| HONG Wenpeng,LIU Yan,ZHOU Yunlong.The Flow Pattern and Differential Pressure Fluctuations of Gas-liquid Two-phase Flow Across Tube Bundles[J].Proceedings of the CSEE,2011,31(32). |
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| Authors: | HONG Wenpeng LIU Yan ZHOU Yunlong |
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| Affiliation: | HONG Wenpeng,LIU Yan,ZHOU Yunlong(School of Energy and Power Engineering,Northeast Dianli University,Jilin 132012,Jilin Province,China) |
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| Abstract: | The transitional flow and pressure signals of the gas-liquid two-phase flow,which gets vertical upward through the in-line tube bundles of two different pitch ratio in a rectangular channel,were researched by high-speed video camera,and we obtained the S-shaped flow image in the process of bubbly flow.After the analysis of a variety of flow patterns' transition mechanisms,the boundary maps of flow pattern were drawn based on the experimental data.The decreasing trend of the pressure signals was found from t... |
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| Keywords: | gas-liquid two-phase flow in-line tube bundles high-speed video transitional flow pattern differential pressure signal |
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