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Effect of Surface Tension Relaxation on the Stability of a Charged Jetстатья
Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
- Авторы: Grigor’ev A.I., Kolbneva N.Yu, Shiryaeva S.O.
- Журнал: Fluid Dynamics
- Том: 58
- Номер: 9
- Год издания: 2023
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1
- Последняя страница: 11
- Оригинальные версии: Влияние релаксации поверхностного натяжения на устойчивость заряженной струи
- DOI: 10.1134/S0015462823603017
- Аннотация: In the asymptotic calculations of the first order of smallness by the dimensionless amplitudeof capillary waves on the surface of charged jets of a polar liquid, the effect of the relaxation effect ofsurface tension on the regularities of their implementation is studied. Calculations are carried out onthe model of an ideal incompressible electrically conductive fluid. It is shown that taking into accountthe effect of dynamic surface tension leads to an increase in the order of the dispersion equation, whichhas another damping root, describing the oscillations of the jet surface related to the destruction of thenear-surface double electric layer (destruction of the ordering of polar molecules in the near-surfacelayer). At sufficiently large charges (prebreakdown in the sense of the ignition of a corona discharge ina gaseous medium), this solution becomes unstable, as a result of which the entire surface undergoeselectrostatic instability. In the used mathematical model of an ideal fluid, the motion of the jet surfacethat occurs when the surface tension relaxation effect is turned on and the attenuation decrements ofthe capillary wave motions are purely of a relaxation nature.
- Добавил в систему: Григорьев Александр Иванович