INSTABILITY OF A LIQUID JET IN A HIGH-FREQUENCY ALTERNATING ELECTRIC FIELD

被引：2
|
作者：
Demekhin, E. A. [1 ]
Polyanskikh, S. V. [1 ]
机构：
[1] Kuban State Univ, Krasnodar 350040, Russia
来源：
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2009年 / 50卷 / 05期
基金：
俄罗斯基础研究基金会;
关键词：
electrohydrodynamics; electrolyte; linear stability; ideal liquid; microjet; STABILITY;
D O I：
10.1007/s10808-009-0106-y
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Stability of a liquid (electrolyte) jet in a tangential electric field harmonically oscillating with a high frequency is considered under an assumption of an ideal liquid. It is demonstrated that it is possible to solve the electrodynamic and hydrodynamic parts of the problem inside the jet separately if the Peclet number based on the Debye layer thickness is small. Linear stability of the trivial solution of the problem is studied. A dispersion relation is derived, which is used to study the effect of the amplitude and frequency of electric field oscillations on jet stability. An increase in the amplitude of oscillations is demonstrated to exert a stabilizing effect, whereas an increase in frequency leads to insignificant destabilization of the jet.
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页码：776 / 784
页数：9
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