Coulomb-driven convection in electrohydrodynamics

A Castellanos - IEEE Transactions on Electrical insulation, 1991 - ieeexplore.ieee.org
The Coulomb-driven EHD instabilities, chaos, and turbulence generated by unipolar
injection in insulating liquids are reviewed. Only systems of the greatest simplicity, well …

Electrohydrodynamic instability and motion induced by injected space charge in insulating liquids

P Atten - IEEE Transactions on Dielectrics and Electrical …, 1996 - ieeexplore.ieee.org
A survey is given of different aspects of fluid motion induced by the Coulomb force exerted
by the electric field on an injected space charge. The instability problem in highly …

Numerical modelling of finite-amplitude electro-thermo-convection in a dielectric liquid layer subjected to both unipolar injection and temperature gradient

P Traore, AT Pérez, D Koulova… - Journal of Fluid …, 2010 - cambridge.org
In this paper, we solve numerically the entire set of equations associated with the electro-
thermo-convective phenomena that take place in a planar layer of dielectric liquid heated …

Two-dimensional numerical analysis of electroconvection in a dielectric liquid subjected to strong unipolar injection

P Traoré, AT Pérez - Physics of Fluids, 2012 - pubs.aip.org
Two-dimensional numerical simulations are carried out to examine the problem of transient
electroconvection stability of dielectric liquids subjected to unipolar injection. The entire set …

Stability and bifurcation of annular electro-thermo-convection

K Luo, HK Jiang, J Wu, M Zhang, HL Yi - Journal of Fluid Mechanics, 2023 - cambridge.org
We numerically investigated the global linear instability and bifurcations in electro-thermo-
convection (ETC) of a dielectric liquid confined in a two-dimensional (2-D) concentric …

Weakly nonlinear stability analysis of subcritical electrohydrodynamic flow subject to strong unipolar injection

M Zhang - Journal of Fluid Mechanics, 2016 - cambridge.org
We analyse in detail the weakly nonlinear stability of electrohydrodynamic (EHD) flow of
insulating fluids subject to strong unipolar injection, with and without cross-flow. We first …

Instability of electroconvection in viscoelastic fluids subjected to unipolar injection

ZG Su, YM Zhang, K Luo, HL Yi - Physics of Fluids, 2020 - pubs.aip.org
In this paper, a two-dimensional numerical study on the nonlinear behaviors of
electrohydrodynamic flows of Oldroyd-B viscoelastic dielectric liquid subjected to unipolar …

Numerical investigation of the electro-thermo convection in an inclined cavity filled with a dielectric fluid

D Akrour, MI Elkhazen, W Hassen, K Kriaa, C Maatki… - Processes, 2023 - mdpi.com
The present work is a numerical analysis of electro-thermo convection, occurring in a square
differentially heated cavity filled with a dielectric fluid. The cavity experiences the combined …

Numerical simulation of EHD flows using discontinuous Galerkin finite element methods

PA Vázquez, A Castellanos - Computers & Fluids, 2013 - Elsevier
The aim of this paper is to explore the capability of Discontinuous Galerkin Finite Element
methods to solve numerically the charge transport equation in EHD convective flows, in both …

[HTML][HTML] EHD flow and heat transfer of hybrid nanofluid in a free surface cavity fitted with an internal hot obstacle

W Hassen, I Safra, K Ghachem, BM Alshammari… - Case Studies in Thermal …, 2024 - Elsevier
The objective of this study is to numerically investigate the effects of electrohydrodynamics
(EHD) on coupled free convective thermocapillary flow. The study focuses on a free-surface …