A new device for the generation of microbubbles
A new device for the generation of microbubbles
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DOI：
10.1063/1.1737739
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发表时间：
2004-08-01
影响因子：
4.6
通讯作者：
Weitz, DA
中科院分区：
文献类型：
--
作者：
Gordillo, JM;Cheng, ZD;Weitz, DA
在本文中，我们提出了一种新的方法，用于生产气泡-液体悬浮液（从现在开始BLS）组成的微米级气泡和气液体积比大于1。我们表明，BLS气体分数λ =Q（g）/Q（l），即气体和液体的流速分别为Q（g）和Q（l），是由一个无量纲参数控制的，该参数说明了装置内的气体压力与液体粘性压降的比率，液体粘性压降从液体被注入的孔到出口，在那里获得BLS。这个参数允许正确缩放的BLS气体体积分数的所有实验。(C)2004年，美国物理学会。
In this paper we present a new method for the production of bubble-liquid suspensions (from now on BLS) composed of micron-sized bubbles and with gas to liquid volume ratios larger than unity. We show that the BLS gas fraction lambda=Q(g)/Q(l), being Q(g) and Q(l) the flow rates of gas and liquid, respectively, is controlled by a dimensionless parameter which accounts for the ratio of the gas pressure inside the device to the liquid viscous pressure drop from the orifices where the liquid is injected to the exit, where the BLS is obtained. This parameter permits the correct scaling of the BLS gas volume fraction of all the experiments presented. (C) 2004 American Institute of Physics.