Antonio Castellanos - Academia.edu (original) (raw)

Antonio Castellanos

Uploads

Papers by Antonio Castellanos

Research paper thumbnail of AC Electric-Field-Induced Fluid Flow in Microelectrodes

Journal of Colloid and Interface Science, 1999

Research paper thumbnail of Coulomb-driven convection in electrohydrodynamics

IEEE Transactions on Electrical Insulation, 1991

The Coulomb-driven EHD instabilities, chaos, and turbulence generated by unipolar injection in in... more The Coulomb-driven EHD instabilities, chaos, and turbulence generated by unipolar injection in insulating liquids are reviewed. Only systems of the greatest simplicity, well suited for a fundamental study, are considered. As the paper is intended to be introductory, the emphasis is on the physical mechanisms responsible for EHD phenomena

Research paper thumbnail of Fluid flow induced by nonuniform ac electric fields in electrolytes on microelectrodes. II. A linear double-layer analysis

Research paper thumbnail of Pumping of liquids with ac voltages applied to asymmetric pairs of microelectrodes

Research paper thumbnail of Flow Regimes in Fine Cohesive Powders

Physical Review Letters, 1999

Research paper thumbnail of Electrothermally induced fluid flow on microelectrodes

Journal of Electrostatics, 2001

Planar microelectrodes, used for the electrokinetic manipulation of particles, generate high stre... more Planar microelectrodes, used for the electrokinetic manipulation of particles, generate high strength AC electric fields, resulting not only in forces on the particles but also on the suspending fluid. Observations of electrolytes on microelectrode structures at applied signal ...

Research paper thumbnail of The role of electrohydrodynamic forces in the dielectrophoretic manipulation and separation of particles

Journal of Electrostatics, 1999

A dielectric particle suspended in a dielectric medium polarises under the influence of an electr... more A dielectric particle suspended in a dielectric medium polarises under the influence of an electric field. If the field is non-uniform, the particle experiences a directional force and the resulting movement is referred to as dielectrophoresis. The high electric fields can also cause fluid motion, which in turn results in a viscous drag force on the particle. This paper outlines the application of dielectrophoresis to the sub-micrometre scale and discusses mechanisms responsible for fluid motion in small electrode structures. Preliminary ...

Research paper thumbnail of Ac electrokinetics: a review of forces in microelectrode structures

Journal of Physics D-applied Physics, 1998

Research paper thumbnail of Electrothermal flows generated by alternating and rotating electric fields in microsystems

Journal of Fluid Mechanics, 2006

Research paper thumbnail of Electrohydrodynamics and dielectrophoresis in microsystems: scaling laws

Journal of Physics D-applied Physics, 2003

Research paper thumbnail of Fluid flow induced by nonuniform ac electric fields in electrolytes on microelectrodes. I. Experimental measurements

Research paper thumbnail of Nonlinear electrohydrodynamic waves on films falling down an inclined plane

Physical Review E, 1996

The stability of a perfectly conducting viscous film, falling down an inclined plane, is consider... more The stability of a perfectly conducting viscous film, falling down an inclined plane, is considered for the case of an applied uniform normal electric field. A highly nonlinear evolution equation for the deformation of the free surface of the film is derived. The study of the linear stability of the system shows the destabilizing effect of the electric forces. A

Research paper thumbnail of Nonlinear electrohydrodynamics of free surfaces

IEEE Transactions on Dielectrics and Electrical Insulation, 1998

Electrical stresses acting at electrified interfaces govern the dynamics of fluids in many situat... more Electrical stresses acting at electrified interfaces govern the dynamics of fluids in many situations of practical relevance. In order to understand the electrohydrodynamics of these systems, a knowledge of the forces acting at interfaces is necessary. We will review the balance equations for the forces and the charge density. The relevant nondimensional numbers will be derived and illustrated with some

Research paper thumbnail of AC Electric-Field-Induced Fluid Flow in Microelectrodes

Journal of Colloid and Interface Science, 1999

Research paper thumbnail of Coulomb-driven convection in electrohydrodynamics

IEEE Transactions on Electrical Insulation, 1991

The Coulomb-driven EHD instabilities, chaos, and turbulence generated by unipolar injection in in... more The Coulomb-driven EHD instabilities, chaos, and turbulence generated by unipolar injection in insulating liquids are reviewed. Only systems of the greatest simplicity, well suited for a fundamental study, are considered. As the paper is intended to be introductory, the emphasis is on the physical mechanisms responsible for EHD phenomena

Research paper thumbnail of Fluid flow induced by nonuniform ac electric fields in electrolytes on microelectrodes. II. A linear double-layer analysis

Research paper thumbnail of Pumping of liquids with ac voltages applied to asymmetric pairs of microelectrodes

Research paper thumbnail of Flow Regimes in Fine Cohesive Powders

Physical Review Letters, 1999

Research paper thumbnail of Electrothermally induced fluid flow on microelectrodes

Journal of Electrostatics, 2001

Planar microelectrodes, used for the electrokinetic manipulation of particles, generate high stre... more Planar microelectrodes, used for the electrokinetic manipulation of particles, generate high strength AC electric fields, resulting not only in forces on the particles but also on the suspending fluid. Observations of electrolytes on microelectrode structures at applied signal ...

Research paper thumbnail of The role of electrohydrodynamic forces in the dielectrophoretic manipulation and separation of particles

Journal of Electrostatics, 1999

A dielectric particle suspended in a dielectric medium polarises under the influence of an electr... more A dielectric particle suspended in a dielectric medium polarises under the influence of an electric field. If the field is non-uniform, the particle experiences a directional force and the resulting movement is referred to as dielectrophoresis. The high electric fields can also cause fluid motion, which in turn results in a viscous drag force on the particle. This paper outlines the application of dielectrophoresis to the sub-micrometre scale and discusses mechanisms responsible for fluid motion in small electrode structures. Preliminary ...

Research paper thumbnail of Ac electrokinetics: a review of forces in microelectrode structures

Journal of Physics D-applied Physics, 1998

Research paper thumbnail of Electrothermal flows generated by alternating and rotating electric fields in microsystems

Journal of Fluid Mechanics, 2006

Research paper thumbnail of Electrohydrodynamics and dielectrophoresis in microsystems: scaling laws

Journal of Physics D-applied Physics, 2003

Research paper thumbnail of Fluid flow induced by nonuniform ac electric fields in electrolytes on microelectrodes. I. Experimental measurements

Research paper thumbnail of Nonlinear electrohydrodynamic waves on films falling down an inclined plane

Physical Review E, 1996

The stability of a perfectly conducting viscous film, falling down an inclined plane, is consider... more The stability of a perfectly conducting viscous film, falling down an inclined plane, is considered for the case of an applied uniform normal electric field. A highly nonlinear evolution equation for the deformation of the free surface of the film is derived. The study of the linear stability of the system shows the destabilizing effect of the electric forces. A

Research paper thumbnail of Nonlinear electrohydrodynamics of free surfaces

IEEE Transactions on Dielectrics and Electrical Insulation, 1998

Electrical stresses acting at electrified interfaces govern the dynamics of fluids in many situat... more Electrical stresses acting at electrified interfaces govern the dynamics of fluids in many situations of practical relevance. In order to understand the electrohydrodynamics of these systems, a knowledge of the forces acting at interfaces is necessary. We will review the balance equations for the forces and the charge density. The relevant nondimensional numbers will be derived and illustrated with some

Log In