Hele-Shaw flow driven by an electric field

被引：2
|
作者：
Khalid, A. H. [1 ]
McDonald, N. R. [1 ]
Vanden-Broeck, J. -M. [1 ]
机构：
[1] UCL, Dept Math, London WC1E 6BT, England
来源：
EUROPEAN JOURNAL OF APPLIED MATHEMATICS | 2014年 / 25卷
关键词：
Hele-Shaw flows; Free boundary problems; Complex variable methods; WAVES; WATER;
D O I：
10.1017/S0956792513000351
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The behaviour of two-dimensional finite blobs of conducting viscous fluid in a Hele-Shaw cell subject to an electric field is considered. The time-dependent free boundary problem is studied both analytically using the Schwarz function of the free boundary and numerically using a boundary integral method. Various problems are considered, including (i) the behaviour of an initially circular blob of conducting fluid subject to an electric point charge located arbitrarily within the blob, (ii) the delay in cusp formation on the free boundary in sink-driven flow due to a strategically placed electric charge and (iii) the stability of exact steady solutions having both hydrodynamic and electric forcing.
引用
收藏
页码：425 / 447
页数：23
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