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Atomization and Sprays
Facteur d'impact: 1.262 Facteur d'impact sur 5 ans: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimer: 1044-5110
ISSN En ligne: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.v19.i11.40
pages 1045-1063

ELECTROHYDRODYNAMICS AND CHARGE INJECTION ATOMIZERS: A REVIEW OF THE GOVERNING EQUATIONS AND TURBULENCE

Agisilaos Kourmatzis
Aerospace, Mechanical and Mechatronic Engineering
John S. Shrimpton
Energy Technology Research Group, School of Engineering Sciences, University of Southampton, United Kingdom, SO171BJ

RÉSUMÉ

This review paper provides an overview of the governing equations of electrohydrodynamics pertaining to dielectric liquid atomization. The majority of the paper concentrates on the governing equations of electrohydrodynamic (EHD) flow and general averaged forms and their relevance to the study of charge injection atomizers. These equations are nondimensionalized and will bring to the forefront relevant quantities that define the electroconvective problem. A time-scale based method and traditional engineering method of nondimensionalization highlight values of key numbers for several specific charge injection atomizer concepts. Finally, an overview of EHD turbulence literature is provided along with a statement of the Reynolds-averaged governing equations allowing for discussion of the unclosed terms appearing and their probable significance.


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