A study of vortex shedding induced by dielectric barrier injection

Previous works have proved that a dielectric barrier injection (DBI) device could be used as an electrohydrodynamic (EHD) actuator. Such a device was used to generate a wall jet with an average velocity of 0.14 m/s. In this study, the liquid flow induced in the surface vicinity by a DBI actuator is...

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Bibliographic Details
Published inJournal of electrostatics Vol. 67; no. 2; pp. 348 - 353
Main Authors Louste, C., Daaboul, M., Romat, H.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2009
Elsevier
Subjects
Dielectric barrier injection
Electroconvection
Electrohydrodynamics
Engineering Sciences
Fluid mechanics
Fluids mechanics
Mechanics
Particle image velocimetry
Physics
Vortex shedding
Electroconvection
Particle image velocimetry
Vortex shedding
Electrohydrodynamics
Dielectric barrier injection
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Summary:Previous works have proved that a dielectric barrier injection (DBI) device could be used as an electrohydrodynamic (EHD) actuator. Such a device was used to generate a wall jet with an average velocity of 0.14 m/s. In this study, the liquid flow induced in the surface vicinity by a DBI actuator is measured by Particle Image Velocimetry (PIV). The phase analysis of the flow velocity shows that the DBI actuator mainly acts as a vortex generator. The work presented in this paper underline the relation between the vortex structures and the polarity of the injecting electrode.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0304-3886
1873-5738
DOI:10.1016/j.elstat.2009.02.007