Modeling Drop-Wall Interaction in the Film Boiling Regime under an Alternating-Current Electric Field

Ghadami, Reza; Pournaderi, Pedram

doi:10.22034/jmnr.2026.15016.1002

Modeling Drop-Wall Interaction in the Film Boiling Regime under an Alternating-Current Electric Field

Document Type : Research Article

Authors

Reza Ghadami

Pedram Pournaderi

Department of Mechanical Engineering, Yasouj University

10.22034/jmnr.2026.15016.1002

Abstract

In this paper, the drop-wall interaction in the film boiling regime under an alternating-current electric field is simulated based on perfect dielectric theory. A sharp interface approach (combination of the level-set and ghost fluid method) is implemented to model the interface accurately. Subject to an alternating-current electric field, the spreading extent of the droplet is reduced. However, the electric stresses act in a way that the droplet height at the rebounding moment and contact time of the droplet on the surface increase. The obtained results prove that the influence of the voltage frequency on the spreading extent, droplet height and contact time is slight. According to the results, the total heat dissipated from the surface is enhanced under an alternating-current electric field, especially, at lower Weber numbers. At other Weber numbers, the effect of the voltage frequency is not remarkable. At the low Weber numbers, the most value of the dissipated heat is observed at the highest voltage frequency.

Keywords

Electrohydrodynamics

Collision

Drop

Film boiling regime

Alternating current