Investigation of Gas-Droplet Flow in Presence of Electrical Discharge

The mutual influence of electric discharge and air-droplet flow formed by a centrifugal nozzle when a conductive liquid (solution of sodium chloride in water) is supplied to it under pressure was investigated. Using the method of digital double microphotography with further computer processing of photographs, the main characteristics of the spray in the presence of an electric discharge and without it were obtained: the mean diameter, the Sauter mean diameter, the distribution of the velocity vector components by the droplet diameter and others. It is shown that the presence of liquid spray leads to a decrease in the effective value of the breakdown electric field strength. Also it was found that the energy release into the air-droplet flow leads to a change in the value of the Sauter mean diameter, and the presence of a high voltage in the measurement region leads to the acceleration of drops of a relatively small diameter.