language: en

Numerical simulation and PIV experimental analysis of electrohydrodynamic plumes induced by a blade electrode.

Ph Traoré
Laboratoire d'Etudes Aérodynamiques
Boulevard Pierre et Marie Curie, BP 30179, 86962 Futuroscope-Chasseneuil, France
philippe.traore@univ-poitiers.fr
M Daaboul
Laboratoire d'Etudes Aérodynamiques
Boulevard Pierre et Marie Curie, BP 30179, 86962 Futuroscope-Chasseneuil, France
Ch Louste
Laboratoire d'Etudes Aérodynamiques
Boulevard Pierre et Marie Curie, BP 30179, 86962 Futuroscope-Chasseneuil, France

[Received]

2 December 2003 ;

[received in revised form 9 July 2004; accepted 9 September 2004]

KEYWORDS Multivariate; Mean equality; Two-group design; Robust estimation; Covariance heterogeneity

Abstract. In this paper, a comparative study between numerical and experimental results from PIV measurements is presented in the case of two-dimensional electrohydrodynamic plumes that arise when a sharp metallic blade, submerged in non conducting liquids, supports high electric potential. Experiments and numerical simulations have been conducted in order to confront the both approaches. A very good agreement has been found through velocity profiles and velocity fields which testifies the relevance of our numerical model. For high potentials the jet flow issued forth from the blade becomes unsteady and starts to flap on the vertical wall. Some captions of the temporal evolution of the isocontours of charge density which is not accessible from experiment are presented thanks to the numerical simulation.

1. Introduction