HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Electrohydrodynamic atomisation of water stabilised by glow discharge—operating range and droplet properties

Abstract : This paper deals with the production of charged water droplets by ElectroHydroDynamic Atomisation (EHDA) of water, in air at atmospheric pressure, in a mode stabilised by a particular corona discharge regime. Indeed, impulse filamentary discharges developing in the gas around the liquid cone temporarily disrupt the EHD equilibrium leading to an unstable mode of EHDA with varying droplet properties (size and charge). The purpose of this paper is to show that a stable mode can be obtained by the control of the field divergence around the liquid, i.e. the electric field profile in the gas, leading to a continuous glow discharge without impulse filamentary discharge. Using observations, electrical measurements and droplets size characterisation, several spraying modes are depicted. We have demonstrated that the electrical discharge regime (continuous/impulse) induces the mode of EHDA (stable/unstable). The stability domains are defined versus liquid flow rate, conductivity, voltage for different nozzle diameters. Then, the properties of droplets (droplets diameter, spray current) produced within these modes are established as a function of the liquid flow rate, of the conductivity and of the glow current.
Document type :
Journal articles
Complete list of metadata

Contributor : Jean-Pascal Ou J.-P. Ou J-P Ou Jp Ou Jp Ou J.P. Borra Connect in order to contact the contributor
Submitted on : Tuesday, December 14, 2021 - 1:38:00 PM
Last modification on : Tuesday, January 4, 2022 - 3:36:40 AM


Borra 2004, JAS 35 Final EScjG...
Files produced by the author(s)




Jean-Pascal Borra, P. Ehouarn, D. Boulaud. Electrohydrodynamic atomisation of water stabilised by glow discharge—operating range and droplet properties. Journal of Aerosol Science, Elsevier, 2004, 35 (11), pp.1313-1332. ⟨10.1016/j.jaerosci.2004.05.011⟩. ⟨hal-03479574⟩



Record views


Files downloads