Self-Pulsing Regime of DC Electric Discharge in Dielectric Tube Filled With Water Containing Gas Bubble

Effective generation of biochemically active species inside a liquid can be performed by an electric discharge in small gas bubbles admixed from outside into the liquid. In such a case, active species are produced by a gas discharge plasma inside bubbles and then transported due to diffusion into the liquid. This paper presents experimental data of electric discharges in small bubbles inserted into a thin dielectric tube filled with water. A low-frequency regime of periodic electrical breakdowns is revealed and described.