The trapping and release of bubbles from a linear pore
The trapping and release of bubbles from a linear pore
复制标题
线性孔隙中气泡的捕获和释放
DOI:
10.1017/jfm.2013.103
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发表时间:
2013
影响因子:
3.7
通讯作者:
Dawson G
中科院分区:
文献类型:
--
作者:
Dawson G
Streamwise variation in vessel geometry is a feature of many multiphase flows of practical interest, ranging from natural porous media flows to man-made lab-on-the-chip applications. The variable streamwise geometry typically exerts a dominant influence on bubble motion, and can lead to undesirable phenomena such as clogging of the vessel. Here, we study clogging in a fundamental configuration, where a tube of square cross-section is suddenly expanded over a short streamwise distance. The extent to which a bubble driven by constant flux flow broadens to partially fill the expansion depends on the balance between viscous and surface tension stresses, measured by the capillary number depends non-monotonically on the size of the bubble. We verify, with experiments and a capillary static model, that a bubble is released if the work of the pressure forces over the length of the trap exceeds the surface energy required for the trapped bubble to reenter the constricted square tube.
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影响因子:
4.6
作者:
M. Pailha;A. Hazel;P. Glendinning;A. Juel
通讯作者:
M. Pailha;A. Hazel;P. Glendinning;A. Juel
DOI:
10.1016/j.jcp.2008.06.027
发表时间:
2008
期刊:
J. Comput. Phys.
影响因子:
--
作者:
P. Janssen;P. D. Anderson
通讯作者:
P. D. Anderson
影响因子:
6.1
作者:
Ahn, Byungwook;Lee, Kangsun;Oh, Kwang W.
通讯作者:
Oh, Kwang W.
影响因子:
4.6
作者:
O. Amyot;F. Plouraboué
通讯作者:
F. Plouraboué
影响因子:
3.7
作者:
DE LÓZAR A
通讯作者:
DE LÓZAR A