Experimental and numerical analysis reveals bubble behavior in two-phase flow under electric fields, indicating potential applications in agriculture and wastewater treatment.
The efficient production and transport of reactive species through plasma discharges in liquids shows potential for use in agriculture and wastewater treatment. This study presents the experimental and simulation results of electrohydrodynamics. Experiments were conducted using a high-voltage wire-to-cylinder electrode setup with deionized water and the injection of argon gas bubbles. For numerical analysis, electrohydrodynamic features were added to PHASTA (Parallel Hierarchical Adaptive Stabilized Transient Analysis), a FEM-based flow solver. With this addition to PHASTA, we examine the effects of electric fields on two-phase flow. This work explores bubble behavior under uniform and transient electric fields. A detailed parametric study and validation of the numerical method are shown by comparing the results to published simulation and experimental data. The study highlights the impact of electric fields on bubble dynamics under various conditions and underscores the importance of accurate numerical modeling in capturing this behavior. The upgraded PHASTA could be used for complex geometries in practical applications.
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Jagtap et al. (2026) studied this question.
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