Journal
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS
Volume 64, Issue 3, Pages 465-471Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0021894423030124
Keywords
nonlinear waves; wave turbulence; electric field; free surface; electrohydrodynamics
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This paper presents a three-dimensional direct numerical simulation of the chaotic dynamics of the free surface of a dielectric fluid in an external tangential electric field. The effects of energy pumping, energy dissipation, and surface tension are considered. The study reveals a transition from dispersion capillary wave turbulence to anisotropic electrohydrodynamic wave turbulence as the strength of the external electric field increases.
This paper presents a three-dimensional direct numerical simulation of the chaotic dynamics of the free surface of a dielectric fluid 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 that differs from the classical spectrum of capillary turbulence.
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