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Shape of a drop in an electric field

 

作者: Michael J. Miksis,  

 

期刊: Physics of Fluids(00319171)  (AIP Available online 1981)
卷期: Volume 24, issue 11  

页码: 1967-1972

 

ISSN:0031-9171

 

年代: 1981

 

DOI:10.1063/1.863293

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The shape of an axisymmetric dielectric drop in a uniform electric field is computed numerically. The problem is formulated as a nonlinear integro‐differential system of equations. They are discretized and the resulting algebraic system is solved by Newton’s method. The results show that when the dielectric constant &egr; is larger than a critical value &egr;c, the drop develops two obtuse‐angled conical points at its ends for a certain field strength. For &egr;<&egr;c, the drop elongates and retains its original nearly prolate spheroidal shape without developing conical points as the field is increased. The numerical results are in good agreement with the moment and two‐point approximations. The energy, volume, and area of the drop are computed, and the two‐dimensional case is also treated.

 

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