Focusing properties of a single emission cell for colloid electrojet engine

Аuthors

Shtyrlin A. F.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

e-mail: k.208@mai.ru

Abstract

Focusing properties are analyzed for electrostatic liquid atomization from pointed edges of emission electrodes with diameter values from 2.24 mm to 3.22 mm. A physical mechanism of the process is studied by means of modeling for electric field in an emission cell, trajectory construction for charged drops and determination of annular divergence for a beam. Experimental data are obtained basing on measurements of current distribution in multisectional target with overall capture angle equal to 120°. Experimental relationships are presented for a mean annular divergence value as well as for a coefficient of vector-angular energetic losses subject to unit rate of flow for some unit length of emission edge.

Keywords:

focusing properties; single emission cell; colloid electrojet engine