Dynamics of water droplets breakup in electric fields

Inculet, I.I.; Floryan, J. M.; Haywood, R. J.

doi:10.1109/28.158849

Cited by 34 publications

(15 citation statements)

References 7 publications

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“…A 50 x 50 uniform mesh was used, and the grid spacing was Az = 2.04 x m, Ay = 4.08 x m. The time increments are shown on the graphs. Our simulation plots are consistent with the main functional modes described in [5],[7], and [SI.Variations in Viscosity.…”

supporting

confidence: 81%

“…If the fluid is modeled as a perfect electrical conductor or insulator, then detailed updating is not required and the charge flow equation assumes its simplest form. This is the approach we take in this note, which is a common first approximation to the problem [7]. The more general case of imperfect dielectrics and conductors can be analyzed by initially assigning values to the positive and negative charge densities and corresponding mobilities, and then by updating these charge densities via the charge flow equation.…”

Section: The Simulation Modelmentioning

confidence: 99%

“…For another perspective see [7]. The NASA-VOF2D program solves for the velocity and pressure directly with an Eulerian representation of the mesh.…”

Section: The Fluid Flow Modelmentioning

confidence: 99%

“…Basaran [16], and in [17] a simulation is described for the shape of a conducting meniscus when acted on by both electrostatic and hydrostatic forces. Recently, an experimental and simulation analysis on the breakup of large electrified droplets in micro-gravity has been performed [7].…”

Section: Introductionmentioning

confidence: 99%

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Simulating the disintegration of a charged liquid jet

Kaiser¹,

Kaiser²,

Weeks

Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting

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4bsiruct -The complex nature of free-surface electrohydrodynamic flow and numerical difficulties associated with the implementation have traditionally limited simulation studies of this phenomena. In this paper, the simulation of a two-dimensional electrified liquid jet is described, and a set of time sequence graphs are used to illustrate the formation and breakup of the charged jet into droplets. Although free-surface electrohydrodynamic flow has been widely studied on an experimental basis. the results are generally fragmented and at present no theory can accurately explain many of the details of the observed phenomena. The equations describing the flow pattern of an electrified liquid jet are nonlinear and time variant. and analytical solutions are usually only available for simple geometries. In this paper the fluid flow model is motivated and the major numerical considerations of the code are described.

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supporting

confidence: 81%

Section: The Simulation Modelmentioning

confidence: 99%

“…For another perspective see [7]. The NASA-VOF2D program solves for the velocity and pressure directly with an Eulerian representation of the mesh.…”

Section: The Fluid Flow Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Simulating the disintegration of a charged liquid jet

Kaiser¹,

Kaiser²,

Weeks

Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting

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“…How ever, there exists a class of problems where the oscilla tions of a finite viscous liquid volume are calculated under the condition that the equilibrium shape of the volume varies under the action of an external force. An external force can be generated by an electrostatic field [8][9][10], a magnetostatic field [11,12], or an iner tial field [13,14]. It is well known that a drop placed in a uniform electric field takes the shape of a spheroid extended along the field [15,16].…”

Section: Introductionmentioning

confidence: 99%

Modification of the boundary layer theory for calculating viscous drop oscillations in a uniform electrostatic field

Григорьев¹,

Paranin²,

Shiryaeva³

2012

Tech. Phys.

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Capillary oscillations on the free surface of a viscous conductive liquid drop placed in an electrostatic field are calculated. In an approximation linear in stationary deformation amplitude, the drop in this field has the shape of a spheroid extended along the field. The initial problem is modified and simplified in terms of the boundary layer theory by applying an approximation that is linear in the oscillation amplitude and quadratic in the eccentricity of the drop. The accuracy of the approximate solution relative to an exact one is estimated. It is shown that, with a rise in the electrostatic field strength (with an increase in the eccentricity of the drop) and in the viscosity of the liquid, the boundary layer at the free surface of the drop becomes thicker.

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Electrochemical processes in electrospray ionization mass spectrometry

et al. 2000

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Editorial Comment Last month we presented, as a Special Feature, a set of five articles that constituted a Commentary on the fundamentals and mechanism of electrospray ionization (ESI). These articles produced some lively discussion among the authors on the role of electrochemistry in ESI. Six authors participated in a detailed exchange of views on this topic, the final results of which constitute this month's Special Feature. We particularly hope that younger scientists will find value in this month's Special Feature, not only for the science that it teaches but also what it reveals about the processes by which scientific conclusions are drawn. To a degree, the contributions part the curtains on these processes and show science in action. We sincerely thank the contributors to this discussion. The give and take of intellectual debate is not always easy, and to a remarkable extent this set of authors has maintained good humor and friendships, even when disagreeing strongly on substance. Graham Cooks and Richard Caprioli Copyright 2000 John Wiley & Sons, Ltd.

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Dynamics of water droplets breakup in electric fields

Cited by 34 publications

References 7 publications

Simulating the disintegration of a charged liquid jet

Simulating the disintegration of a charged liquid jet

Modification of the boundary layer theory for calculating viscous drop oscillations in a uniform electrostatic field

Electrochemical processes in electrospray ionization mass spectrometry

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