Instability of a charged spherical drop moving parallel to an external electrostatic field |
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Authors: | V A Koromyslov A I Grigor’ev |
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Institution: | (1) Yaroslavl State University, Sovetskaya ul. 14, Yaroslavl, 150000, Russia |
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Abstract: | It is shown that the pressure of electrostatic fields induced by the self-charge of a drop and by the polarization charge
and aerodynamic pressure of a laminar gas flow around a moving charged drop acting simultaneously reduce the critical instability
conditions for the surface of the drop. For these conditions, the spectrum of capillary oscillations of the drop is calculated.
It is found that, at various values of the charge, field strength, and velocity of the drop, the vibrational instability of
the drop surface develops through the interaction of different oscillation modes, namely, second and third, second and fourth,
and third and fifth. |
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Keywords: | |
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