Выходит 12 номеров в год
ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684
Indexed in
SPRAY CHARACTERISTICS OF CHARGE INJECTION ELECTROSTATIC ATOMIZERS WITH SMALL-ORIFICE DIAMETERS
Краткое описание
Here the characteristics of charged sprays of insulating liquids generated by an improved charge injection (electrostatic) atomizer design are described, and the experimental database previously available in the literature is extended to a smaller range of orifice diameters and to more viscous liquids. Previously identified subcritical and supercritical electrohydrodynamic (EHD) regimes for the atomizer are confirmed to be present for the viscosity and orifice diameter ranges studied here, showing that these EHD regimes appear to be generic to the atomization method. The jet breakup dynamics and length are qualitatively and quantitatively studied using imaging and phase Doppler anemometry (PDA), and the general spray plume characteristics are quantitatively described in terms of droplet velocity and diameter probability density functions (PDFs). Radial spray charge and mass flow rates are quantified as using a purpose-built collecting system. By appropriately normalizing the data, the degree of self-similarity between different spray data sets is clearly evident and proves that the near-axis droplets are poorly charged and that the mean specific charge increases with radial displacement, again in a self-similar manner.
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Malkawi G., Yarin A. L., Mashayek F., Breakup mechanisms of electrostatic atomization of corn oil and diesel fuel, Journal of Applied Physics, 108, 6, 2010. Crossref
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Rigit A. R. H., Shrimpton John S., Estimation of the diameter–charge distribution in polydisperse electrically charged sprays of electrically insulating liquids, Experiments in Fluids, 46, 6, 2009. Crossref
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Kourmatzis Agissilaos, Ergene Egemen L., Shrimpton John S., Kyritsis Dimitrios C., Mashayek Farzad, Huo Ming, Combined aerodynamic and electrostatic atomization of dielectric liquid jets, Experiments in Fluids, 53, 1, 2012. Crossref
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Kourmatzis A., Shrimpton J.S., Design and charge injection characteristics of an electrostatic dielectric liquid pulsed atomizer, Journal of Electrostatics, 70, 3, 2012. Crossref
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Amine-Eddine G. H., Shrimpton J. S., On simulations investigating droplet diameter-charge distributions in electrostatically atomized dielectric liquid sprays, International Journal for Numerical Methods in Fluids, 72, 10, 2013. Crossref
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Louste C., Daaboul M., Traore Ph., Romat H., ElectroHydroDynamic primary break-up of deposited droplets, 2011 IEEE International Conference on Dielectric Liquids, 2011. Crossref
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Shrimpton John, Kourmatzis Agissilaos, Direct numerical simulation of forced flow dielectric EHD within charge injection atomizers, IEEE Transactions on Dielectrics and Electrical Insulation, 17, 6, 2010. Crossref
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Ergene E.L., Malkawi G., Mashayek F., Shrimpton J.S., Charge injection with multiple blade-plane configurations in a quiescent dielectric liquid, IEEE Transactions on Dielectrics and Electrical Insulation, 17, 6, 2010. Crossref
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Singh G., Pham P.X., Kourmatzis A., Masri A.R., Effect of electric charge and temperature on the near-field atomization of diesel and biodiesel, Fuel, 241, 2019. Crossref
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Li Shengji, Zhuo Zhu, He Lanjiao, Huang Xuefeng, Atomization characteristics of nano-Al/ethanol nanofluid fuel in electrostatic field, Fuel, 236, 2019. Crossref
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Kourmatzis A., Shrimpton J. S., Turbulent three-dimensional dielectric electrohydrodynamic convection between two plates, Journal of Fluid Mechanics, 696, 2012. Crossref
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Sankaran A., Staszel C., Sahu R. P., Yarin A. L., Mashayek F., Evidence of Faradaic Reactions in Electrostatic Atomizers, Langmuir, 33, 6, 2017. Crossref
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Huang Xuefeng, Sheng Ling, Lu Yibin, Li Shengji, Atomization Characteristics of Hydrogen Peroxide Solutions in Electrostatic Field, Micromachines, 13, 5, 2022. Crossref