The circulation produced in a drop by an electric field: A high field strength electrokinetic model
The circulation produced in a drop by an electric field: A high field strength electrokinetic model
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DOI：
10.1063/1.38956
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发表时间：
2008-06
期刊：
影响因子：
--
通讯作者：
J. Baygents;D. Saville
中科院分区：
文献类型：
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作者：
J. Baygents;D. Saville
检查电场在液滴中产生的循环。这里，杰弗里·泰勒爵士的原型解决方案中使用的漏电介质被电荷传输的电动模型所取代。采用奇异扰动方法来获得液滴对场的宏观响应的描述。显着的结果是两个模型的预测完全一致。此前，人们认为，由于液滴表面空间电荷积累的影响（可能在泄漏电介质中被忽略）解释了理论与实验之间现存的差异。动电模型表明，从总体意义上讲，漏电介质解释了空间电荷，因此与数据的差异仍然无法解释。
The circulation produced in a drop by an electric field is examined. Here the leaky dielectric, used in the prototypal solution of Sir Geoffrey Taylor, is replaced with an electrokinetic model of the charge transport. Singular perturbation methods are employed to obtain a description of the macroscopic response of the drop to the field. The remarkable result is that complete agreement is found between the predictions of the two models. Previously, it was thought that effects due to space‐charge accumulation at the drop surface, which had presumably been omitted from the leaky dielectric, explained extant discrepancies between theory and experiment. The electrokinetic model shows that, in an aggregate sense, the leaky dielectric accounts for the space charge, and, so, the differences with the data remain unexplained.