Title :
Electrohydrodynamic plumes in point-plane geometry
Author :
Atten, P. ; Malraison, B. ; Zahn, M.
Author_Institution :
Lab. d´´Electrostatique et de Materiaux Dielectriques, CNRS, Grenoble, France
Abstract :
The particular flow organization induced by injection from a needle of small radius of curvature into an insulating dielectric liquid is examined. Experimental results are presented on the electrical current as a function of the point-plane distance and the applied voltage. Schlieren visualization yields a preliminary estimate of the width of the plume and reveals its unsteady character. An approximate analysis is developed which takes into account the finite but very thin axial region where charge is confined
Keywords :
electrohydrodynamics; Schlieren visualization; applied voltage; axial region; electrical current; electrohydrodynamic plumes; flow organization; injection; insulating dielectric liquid; needle; plume; point-plane distance; point-plane geometry; unsteady character; Dielectric liquids; Dielectrics and electrical insulation; Electrodes; Electrohydrodynamics; Electron mobility; Geometry; Needles; Space charge; Visualization; Voltage;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids,1993., ICDL '93., IEEE 11th International Conference on
Conference_Location :
Baden-Dattwil
Print_ISBN :
0-7803-0791-7
DOI :
10.1109/ICDL.1993.594000
