Electrohydrodynamics

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Electrohydrodynamics (EHD), also known as electro-fluid-dynamics (EFD) or electrokinetics, is the study of the dynamics of electrically charged fluids. (Wikipedia.org)






Conferences related to Electrohydrodynamics

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2023 Annual International Conference of the IEEE Engineering in Medicine & Biology Conference (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.


2021 IEEE Pulsed Power Conference (PPC)

The Pulsed Power Conference is held on a biannual basis and serves as the principal forum forthe exchange of information on pulsed power technology and engineering.


2020 IEEE Industry Applications Society Annual Meeting

The Annual Meeting is a gathering of experts who work and conduct research in the industrial applications of electrical systems.


2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society

IECON is focusing on industrial and manufacturing theory and applications of electronics, controls, communications, instrumentation and computational intelligence.


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Periodicals related to Electrohydrodynamics

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Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Display Technology, Journal of

This publication covers the theory, design, fabrication, manufacturing and application of information displays and aspects of display technology that emphasize the progress in device engineering, device design, materials, electronics, physics and reliabilityaspects of displays and the application of displays.


Electrical Insulation Magazine, IEEE

The magazine covers theory, analysis, design (computer-aided design), and practical implementation of circuits, and the application of circuit theoretic techniques to systems and to signal processing. Content is written for the spectrum of activities from basic scientific theory to industrial applications.


Electron Devices, IEEE Transactions on

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


Industry Applications, IEEE Transactions on

The development and application of electric systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; the encouragement of energy conservation; the creation of voluntary engineering standards and recommended practices.


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Most published Xplore authors for Electrohydrodynamics

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Xplore Articles related to Electrohydrodynamics

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Printing sub-micrometer lines based on electrohydrodynamics

2012 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO), 2012

Printing techniques develop rapidly especially in the areas of electronics and biotechnology in these decades. In this paper, first we describe the use of electrohydrodynamics for jet printing the lines with the sub-micrometer resolution. It also presents the complex pattern printed by electrohydrodynamics jet printing with the same resolution combined with the automatic control technology. In the second part, we ...


The internal contradictions in system of electrohydrodynamics

Proceedings of 1999 IEEE 13th International Conference on Dielectric Liquids (ICDL'99) (Cat. No.99CH36213), 1999

The system of electrohydrodynamics equations consists of two blocks: equations of electrochemistry of liquid dielectrics, describing the passage of electrical current in a liquid with the ionic mechanism of conductivity in the absence of the interaction of ions with a liquid and of hydrodynamics equations, describing the movement of charged liquid in an electrical field. As a rule, it is ...


Enhancing ACU of White LEDs by Phosphor Coating Based on Electrohydrodynamics

IEEE Photonics Technology Letters, 2017

High angular color uniformity (ACU) is strongly required in many illumination applications. In this letter, we propose a low-cost and facile phosphor coating method based on electrohydrodynamics to realize high ACU for phosphor- converted white light-emitting diodes (LEDs). By applying an electric field around a liquid phosphor-silicone encapsulant, a normal force is induced on the air-liquid interface, resulting in a ...


Maskless Direct Printing of Radio Frequency Identification Antenna Based on Electrohydrodynamics Technology

IEEE Antennas and Wireless Propagation Letters, 2017

This letter proposes an electrohydrodynamics-based printing system developed with high-precision on-off control, which has the merits of anticlog printing, maskless patterning, and precise control. Silver-colloid-based precursor can be conveniently focused into a single and continuous liquid jet and directly printed on glass or aluminum foil substrates just like a dip-pen. The liquid jet itself can be as thin as a ...


Three-dimensional ionic wind and electrohydrodynamics of tuft/point corona electrostatic precipitator

IEEE Transactions on Industry Applications, 2003

The two-dimensional flow interaction between the primary flow and the secondary flow (often called an electric wind or ionic wind) in the wire-duct electrostatic precipitator (ESP) has been investigated theoretically and experimentally in the past. However, the analysis was limited to the two- dimensional, which is acceptable only for the positive polarity and small tuft spacing. The negative corona, commonly ...


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Educational Resources on Electrohydrodynamics

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IEEE.tv Videos

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IEEE-USA E-Books

  • Printing sub-micrometer lines based on electrohydrodynamics

    Printing techniques develop rapidly especially in the areas of electronics and biotechnology in these decades. In this paper, first we describe the use of electrohydrodynamics for jet printing the lines with the sub-micrometer resolution. It also presents the complex pattern printed by electrohydrodynamics jet printing with the same resolution combined with the automatic control technology. In the second part, we research on the parameters which affect the width of the printed lines by a series of experiments. Such experiments focus on the effect of voltage and distance between the tip of the nozzle and the substrate, in addition, concentration of the printed solution and the inner diameter of the nozzle are also considered.

  • The internal contradictions in system of electrohydrodynamics

    The system of electrohydrodynamics equations consists of two blocks: equations of electrochemistry of liquid dielectrics, describing the passage of electrical current in a liquid with the ionic mechanism of conductivity in the absence of the interaction of ions with a liquid and of hydrodynamics equations, describing the movement of charged liquid in an electrical field. As a rule, it is necessary, that the electrical force is enclosed in the whole liquid. In liquid dielectrics the relation between neutral and charged components is equal to 10/sup 6/-10/sup 10/ therefore there is the question about the validity of this rule for a liquid consisting mainly of neutral molecules. In work on electrohydrodynamics the mechanism of transfer of a pulse from charged components to neutral components considered the friction of ions in a liquid. However, this mechanism does not explain how one ion entrains together with self 10/sup 10/ molecules and more neutral molecules. A study of electrohydrodynamic currents has shown, that the speed of currents much exceeds the speed of ionic drift, and that the ion does not move with respect to environmental molecules and that it can be considered as "frozen" in the liquid.

  • Enhancing ACU of White LEDs by Phosphor Coating Based on Electrohydrodynamics

    High angular color uniformity (ACU) is strongly required in many illumination applications. In this letter, we propose a low-cost and facile phosphor coating method based on electrohydrodynamics to realize high ACU for phosphor- converted white light-emitting diodes (LEDs). By applying an electric field around a liquid phosphor-silicone encapsulant, a normal force is induced on the air-liquid interface, resulting in a phosphor layer with cone morphology. Consequently, the ACU of white LEDs with the cone phosphor layer is greatly improved compared with that of white LEDs with the traditional spherical cap phosphor layer. The angular correlated color temperature (CCT) deviations are as low as 393 and 40 K at the average CCTs of 6500 and 5000 K, respectively.

  • Maskless Direct Printing of Radio Frequency Identification Antenna Based on Electrohydrodynamics Technology

    This letter proposes an electrohydrodynamics-based printing system developed with high-precision on-off control, which has the merits of anticlog printing, maskless patterning, and precise control. Silver-colloid-based precursor can be conveniently focused into a single and continuous liquid jet and directly printed on glass or aluminum foil substrates just like a dip-pen. The liquid jet itself can be as thin as a couple of microns, and the minimum silver linewidth could reach 30 μm. With high-precision on-off control of the spraying, complex pictures, letters, as well as a specially designed radio frequency identification (RFID) tag antenna were printed using this system. The printed RFID tag antenna was characterized and analyzed, which meets the basic requirements of practical applications.

  • Three-dimensional ionic wind and electrohydrodynamics of tuft/point corona electrostatic precipitator

    The two-dimensional flow interaction between the primary flow and the secondary flow (often called an electric wind or ionic wind) in the wire-duct electrostatic precipitator (ESP) has been investigated theoretically and experimentally in the past. However, the analysis was limited to the two- dimensional, which is acceptable only for the positive polarity and small tuft spacing. The negative corona, commonly used for the industrial ESPs, generates tufts along the corona wire and the point coronas on the discharge wire and requires three-dimensional analysis. Three-dimensional electric field and space-charge density distributions, and the flow interaction between the primary flow and secondary flow, i.e., electrohydrodynamics were investigated. The computational results show that the secondary flow distribution consists of a donut-shaped ring from each tuft or corona point, which was predicted by the first author 16 years ago. When the primary flow exists, a pair of spiral rings, like Goertler vortices, is formed in the direction of the primary flow. The flow interaction was described using dimensionless number N/sub EHD/, which is the ratio of the ionic wind velocity to the primary flow velocity. The effects of particle motion in the electrohydrodynamic field in the tuft/point corona ESPs are discussed.

  • Three-dimensional electrohydrodynamics in electrostatic precipitator

    The flow interaction between the primary flow and the secondary flow (often called as an electric wind or ionic wind) for the tufts on the corona wire or the point coronas on the discharge wire requires three-dimensional analysis. Three-dimensional electric field and space-charge density distributions, and the flow interaction, i.e., electrohydrodynamics between the primary flow and secondary flow were solved numerically. The computational results show that the secondary flow distribution consists of donuts-shape ring from each tuft or corona. point. When the primary flow exists, a pair of spiral rings, like Goertler vortices, is formed in the direction of the primary flow. The flow interaction was described using a dimensionless number, N/sub EHD/, and the effects of particle motion in the electrohydrodynamic field in the tuft/point corona ESPs are discussed.

  • Three-dimensional ionic wind and electrohydrodynamics of tuft/point corona electrostatic precipitator

    The flow interaction between the primary flow and the secondary flow (often called as an electric wind or ionic wind) in the wire-duct electrostatic precipitator (ESP) has been investigated theoretically and experimentally. In the past, the analysis was limited to the two-dimensional, which is acceptable only for the positive polarity. The negative corona, commonly used for the industrial ESPs, generates tufts along the corona wire and the point coronas on the discharge wire requires three-dimensional analysis. Three-dimensional electric field and space-charge density distributions, and the flow interaction between the primary flow and secondary flow, i.e., electrohydrodynamics were investigated. The computational results show that the secondary flow distribution consists of donuts-shape ring from each tuft or corona point, which was predicted by the first author 16 years ago. When the primary flow exists, a pair of spiral rings, like Goertler vortices is formed in the direction of the primary flow. The flow interaction was described using dimensionless number, N/sub EHD/, and the effects of particle motion in the electrohydrodynamic field in the tuft/point corona ESPs are discussed.

  • Numerical simulational study on convective heat transfer process in tube-Side of Water Jacket-tube enhanced by Electrohydrodynamics

    Aiming at the characteristics of Electrohydrodynamics(EHD)enhancement of boiling heat transfer, based on the fluid mechanics theory and the heat and mass transfer theory, theory of electromagnetism, heat-mass transfer, electromagnetic, the model of the tube-Side of Water Jacket-tube was established with water as working fluid, the numerical method was employed to simulate the EHD-enhanced coefficient in the different DC high voltage under the same conditions, then the numerical results compared to the experiment. The result shows that the convective heat transfer can be enhanced by applying high electric field. The growth of the heat transfer coefficient was not obvious when the applied electric voltage was 0 - 10kV. But the growth changes remarkably as the voltage continues to rise. The error of the strengthen heat transfer coefficient between the numerical simulation and experimental result is 43%.

  • Electrohydrodynamics of liquid dielectrics based on the ideal red-ox systems

    The electrohydrodynamics of liquid dielectrics with dissociation and injection conductivity is considered. The dissociation process is due to the reaction A/sup +/B/sup -/ from or to A/sup +/+B/sup -/. Injection occurs on the cathode according to the following scheme: X+e/sup -/ from or to X/sup -/. It takes into account the recombination of ions A/sup +/ and X/sup -/.<<ETX>>

  • Stratified gas-liquid two-phase electrohydrodynamics in horizontal pipe flow

    Stratified gas-liquid two-phase electrohydrodynamics in pipe flow has been studied experimentally and numerically. Experimental studies were conducted using 1.27 and 1.9*10/sup -2/ m-inner diameter horizontal tubes with air-water two-phase flow for the range of gas surface velocity of 10+or-/sup 2/-10 m/s, liquid surface velocity of 10/sup -2/-2*10/sup -1/ m/s, and applied voltage of 0-20 kV. Experimental results are analysed by an area-averaged two-fluid one- dimensional model. The results show that the effect of the applied electric field is significantly influenced by the flow regime transition boundaries between stratified smooth-to-wavy and stratified wavy-to-intermittent flow. However, the time-averaged void fraction was not observed to be significantly influenced by applied electric fields.<<ETX>>



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