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Influence of an external tangential electric field on the development of capillary turbulence of the free surface of a non-conducting liquid
N. M. Zubarevab, E. A. Kochurinac a Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Екатеринбург, Россия
b P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Москва, Россия
c Skolkovo Institute of Science and Technology, Москва, Россия
Abstract:
This paper presents a three-dimensional direct numerical simulation of the chaotic dynamics of the free surface of a dielectric liquid placed in an external tangential electric field. The physical model includes the effects of energy pumping (external force), energy dissipation (viscosity), and surface tension. As the external electric field strength increases, a transition from the turbulence of dispersive capillary waves (at zero field) to anisotropic electrohydrodynamic wave turbulence is observed. In the strong field limit, where the fluid motion becomes highly anisotropic, a cascade of small-scale capillary waves is formed that propagates perpendicular to the external field direction. In this regime of motion, a new turbulence spectrum occurs, which differs from the classical spectrum of capillary turbulence.
Keywords:
nonlinear waves, wave turbulence, electric field, free surface, electrohydrodynamics.
Received: 22.07.2022 Revised: 23.08.2022 Accepted: 29.08.2022
Citation:
N. M. Zubarev, E. A. Kochurin, “Influence of an external tangential electric field on the development of capillary turbulence of the free surface of a non-conducting liquid”, Prikl. Mekh. Tekh. Fiz., 64:3 (2023), 122–130; J. Appl. Mech. Tech. Phys., 64:3 (2023), 465–471
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https://www.mathnet.ru/eng/pmtf1311 https://www.mathnet.ru/eng/pmtf/v64/i3/p122
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Abstract page: | 46 | References: | 6 | First page: | 4 |
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