| T形微通道内气泡（液滴）生成机理的研究进展 |
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| 引用本文： | 付涛涛,马友光,朱春英.T形微通道内气泡（液滴）生成机理的研究进展[J].化工进展,2011,30(11). |
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| 作者姓名： | 付涛涛 马友光 朱春英 |
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| 作者单位： | 天津大学化工学院化学工程联合国家重点实验室,天津,300072 |
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| 基金项目： | 国家自然科学基金(20876107,20911130358); 化学工程国家重点实验室开放基金(SKL-ChE-08B06)项目 |
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| 摘 要： | 综述了T形微通道内气泡（液滴）的生成机理。讨论了挤压机制、剪切机制以及挤压-剪切共同作用机制下气泡（液滴）生成控制因素,表明挤压机制发生于受限气泡（液滴）的生成,其生成尺寸主要由气液流量控制;剪切机制发生于未受限气泡（液滴）生成,主要由毛细数控制;挤压和剪切共同作用机制发生于挤压-滴状转变区内气泡（液滴）的生成,并由毛细数和流量比共同控制。同时介绍了3种不同机制的物理模型以及黏度比对气泡（液滴）生成的影响。
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| 关 键 词： | T形微通道 气泡 液滴 生成机理 |
Progress in bubble (droplet) formation mechanism in T-shaped microchannels |
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| FU Taotao,MA Youguang,ZHU Chunying.Progress in bubble (droplet) formation mechanism in T-shaped microchannels[J].Chemical Industry and Engineering Progress,2011,30(11). |
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| Authors: | FU Taotao MA Youguang ZHU Chunying |
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| Affiliation: | FU Taotao,MA Youguang,ZHU Chunying(State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China) |
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| Abstract: | The mechanisms for bubble and droplet formation in T-shaped microchannels were reviewed.Control parameters for bubble and droplet formation under three various mechanisms,i.e.squeezing mechanism,shearing rupture mechanism and squeezing-shearing rupture mechanism,were discussed.The results showed that the formation of confined bubble(droplet)is attributed to the squeezing mechanism and the bubble(droplet)size is controlled by gas/liquid flow rate ratio.The production of unconfined bubble(droplet)is attribute... |
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| Keywords: | T-shaped microchannel bubble droplet formation mechanism |
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