Velocity and Turbulence Intensity of an EHD Impinging Dielectric Liquid Jet in Blade–Plane Geometry

Author

Zelu Yan ; Louste, Christophe ; Traore, Philippe ; Romat, Hubert

Author_Institution

Dept. of Fluid Flow, Heat Transfer & Combustion, Univ. of Poitiers, Futuroscope Chasseneuil, France

Volume

49

Issue

5

fYear

2013

fDate

Sept.-Oct. 2013

Firstpage

2314

Lastpage

2322

Abstract

An impinging jet in a dielectric liquid is generated by applying a high potential difference to a blade-plane geometry. This kind of jet is both a fluid flow and an electrical phenomenon. In our study, an overview of the flow field is easily obtained by using the classical particle velocity method. Two patterns of electrohydrodynamic velocity profiles of the jet can be observed when the applied high voltage varies. A typical method for a classical impinging jet is used in order to point out the specific characteristics of electrohydrodynamic jets. Electric current measurements and particle-image-velocimetry investigations are conducted synchronously, which contribute to the analysis of this electrohydrodynamic phenomenon. Two electrical current regimes are presented according to the potential difference.

Keywords

blades; dielectric liquids; electric current measurement; electrohydrodynamics; flow visualisation; jets; turbulence; EHD impinging jet pattern; blade-plane geometry; dielectric liquid; electric current measurement; electrical phenomenon; electrohydrodynamic velocity profile; fluid flow field; particle-image-velocimetry; potential difference; turbulence intensity; Blade–plane geometry; dielectric liquids; electric potential; electrohydrodynamics; fluid flow control; particle image velocimetry (PIV);

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2013.2262257

Filename

6515177