Downstream pressure and elastic wall reflection of droplet flow in a T-junction microchannel

Downstream pressure and elastic wall reflection of droplet flow in a T-junction microchannel
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T形连接微通道中液滴流的下游压力和弹性壁反射

DOI:
10.1007/s10409-016-0561-7
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发表时间:
2016-04
影响因子:
3.5
通讯作者:
Fuwang Zhao
Fuwang Zhao
中科院分区:
工程技术2区
文献类型:
--
作者:
Yan Pang;Zhaomiao Liu;Fuwang Zhao

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本文讨论了t型结微通道中液体流动和液滴形成过程中壁面压力的变化。用数值方法分析了通道内的相关压力、弹性壁面的变形以及液滴产生的响应。连续相和分散相之间的压力差可以指示液滴的生成周期。沿液滴流动通道的压力受液滴位置、液滴产生周期和液滴从出口逸出的影响。当通道是弹性的时候,沿通道变化的压力会引起壁面的不均匀变形。变形是一种振动,与液滴形成过程中产生的液滴具有相同的周期。
This paper discusses pressure variation on a wall during the process of liquid flow and droplet formation in a T-junction microchannel. Relevant pressure in the channel, deformation of the elastic wall, and responses of the droplet generation are analyzed using a numerical method. The pressure difference between the continuous and dispersed phases can indicate the droplet-generation period. The pressure along the channel of the droplet flow is affected by the position of droplets, droplet-generation period, and droplet escape from the outlet. The varying pressures along the channel cause a nonuniform deformation of the wall when they are elastic. The deformation is a vibration and has the same period as the droplet generation arising from the process of droplet formation.
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