Cavitation in dielectric fluid in inhomogeneous pulsed electric field

TL;DR

This paper introduces a method combining theoretical modeling and experiments to study cavitation initiation in dielectric fluids under non-uniform pulsed electric fields, enabling precise determination of critical pressures and model constants.

Contribution

It presents a novel approach for analyzing cavitation onset in dielectric liquids using combined theoretical and experimental techniques under dynamic electric field conditions.

Findings

Identified critical negative pressure for cavitation onset.

Determined constants in classical cavitation models.

Validated the method with experimental data.

Abstract

This paper proposes a method for studying the early stages of the cavitation development in arbitrary, non-stationary conditions. This method is based on the comparison of the results of calculations in the framework of a theoretical model of the liquid dielectrics motion in a strong non-uniform electric field and experiments with controlled parameters. This approach allows us to find the critical negative pressure, at which cavitation begins to develop, and to determine the values of the constants in the classical models of cavitation.