On the Dynamics and Heat Transfer of a Conducting Droplet during Electrospraying in the Dripping Mode
Year: 2025
Type: article
Abstract: In this study, the influence of an applied electric field on the hydrodynamic and heat transfer of a conducting liquid exiting from a nozzle in the dripping regime is investigated. The flow and energy equations along with the electrostatic equations are solved to simulate this problem. The sharp formulation of the level set technique is implemented to capture the interface accurately. Subjected to an electric field, the liquid is exited faster and its elongation before detachment of the droplet is increased. Also, after the first droplet detaches, the liquid returns towards the nozzle. The length of the exited liquid after returning towards the nozzle increases under an electric field. Therefore, under electric stresses, the droplet formation occurs faster due to the rapid exit and more elongation of the liquid. Also, the size of the formed droplet is reduced with electric field intensity. Under an electric field, the heat transfer rate enhances rapidly in a short time interval before droplet detachment. The total heat transferred to the liquid exited from the nozzle is reduced by increasing the electric field intensity.
Authors: Khanpour, Reza, Pournaderi, Pedram
Institution: Yasouj University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7215420132