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Mostrando ítems 1-10 de 28
Artículo
Two-dimensional numerical analysis of electroconvection in a dielectric liquid subjected to strong unipolar injection
(American Institute of Physics, 2012)
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 of electrohydrodynamics equations ...
Artículo
Charge injection enhanced natural convection heat transfer in horizontal concentric annuli filled with a dielectric liquid
(Elsevier, 2016)
The natural convection heat transfer in a highly insulating liquid contained between two horizontal concentric cylinders is shown by two-dimensional numerical simulations to be noticeably enhanced by imposing a direct ...
Artículo
Instability in a non-ohmic/ohmic fluid interface under a perpendicular electric field and unipolar injection
(American Institute of Physics, 2002)
We set the equations for the linear electrohydrodynamic instability of an interface between two fluids, subjected to a perpendicular field and a unipolar charge injection. One of the fluids is modeled as being in non-ohmic ...
Artículo
On two-dimensional finite amplitude electro-convection in a dielectric liquid induced by a strong unipolar injection
(Elsevier, 2015)
The hydrodynamic stability of a dielectric liquid subjected to strong unipolar injection is numerically investigated. We determined the linear criterion Tc (T being the electric Rayleigh number) and finite amplitude one ...
Artículo
Nanosilica to improve the flowability of fine limestone powders in thermochemical storage units
(Elsevier, 2021)
Fine powders are the cornerstone of new energy storage solutions to assist concentrated solar power plants. Though, their ability to behave like fluid can be seriously affected at high temperatures. This work investigates ...
Artículo
The Sevilla Powder Tester: A Tool for Measuring the Flow Properties of Cohesive Powders at High Temperatures
(Hosokawa Powder Technology Foundation, 2022)
Understanding the flowability of cohesive powders at high temperature is of great importance for many industrial applications where these materials are handled at harsh thermal conditions. For instance, the Calcium-Looping ...
Artículo
Thermal and electrohydrodynamic plumes: a compartive study
(AIP Publishing, 1996)
This paper deals with self similar thermal and electrohydrodynamic (EHD) plumes. The former arises from hot lines or points, whereas the latter arises when sharp metallic contours submerged in non conducting liquids ...
Artículo
The stability of a horizontal interface between air and an insulating liquid subjected to charge injection
(American Institute of Physics, 2014)
This paper presents the linear stability analysis of an interface between air and an insulating liquid subjected to a perpendicular electric field, in the presence of unipolar injection of charge. Depending on the ...
Artículo
Electroconvection in a dielectric liquid between two concentric half-cylinders with rigid walls: Linear and nonlinear analysis
(American Physical Society, 2018)
We study the linear stability and nonlinear behavior of the electroconvection between two concentric halfcylinders with no-slip conditions on all boundaries. The no-slip condition makes impossible to apply the standard modal ...
Artículo
Measuring the speed of electromagnetic waves using the cross correlation function of broadband noise at the ends of a transmission line
(American Association of Physics Teachers, 2011)
When one end of a transmission line is connected to a broadband noise generator, sharp peaks are visible in the cross-correlation function of the signals at both ends of the line. The speed of the electromagnetic waves ...