Study on the interaction and evolution of surface dielectric barrier discharge channels

doi:10.1088/1674-1056/adf82b

中国物理B ›› 2026, Vol. 35 ›› Issue (3): 35101-035101.doi: 10.1088/1674-1056/adf82b

Study on the interaction and evolution of surface dielectric barrier discharge channels

Hui Jiang(姜慧)†, Jinyu Tang(唐金宇), and Yufei Han(韩雨菲)

State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China

收稿日期:2025-06-17 修回日期:2025-07-23 接受日期:2025-08-06 出版日期:2026-02-11 发布日期:2026-03-19
通讯作者: Hui Jiang E-mail:jianghui@cqu.edu.cn
基金资助:
This project was supported by the National Natural Science Foundation of China (Grant No. 52377135).

Study on the interaction and evolution of surface dielectric barrier discharge channels

Hui Jiang(姜慧)†, Jinyu Tang(唐金宇), and Yufei Han(韩雨菲)

State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China

Received:2025-06-17 Revised:2025-07-23 Accepted:2025-08-06 Online:2026-02-11 Published:2026-03-19
Contact: Hui Jiang E-mail:jianghui@cqu.edu.cn
Supported by:
This project was supported by the National Natural Science Foundation of China (Grant No. 52377135).

摘要/Abstract

摘要： The dynamic evolution characteristics of the discharge channel are a key factor influencing the plasma distribution of surface dielectric barrier discharge (SDBD). In this paper, a novel oblique dual-tip SDBD actuator structure is proposed to investigate the multi-stage development mechanism of discharge channels. Experimental results demonstrate that when the oblique angle between the two tips ranges from 30$^\circ$ to 90$^\circ$, strong mutual repulsion occurs between the discharge channels, with the repulsion intensity increasing as the voltage amplitude increases. When the tip angle is 120$^\circ$, the dynamic evolution of the discharge channel exhibits three distinct stages. In the initial stage, localized ionization occurs near the leading edge of each tip, forming two independent discharge channels. Then the channels merge and extend along a specific direction, creating a single dominant filament. The current between the two tip electrodes was measured, demonstrating the existence of connected discharge channels. In the final stage, the front of the channel develops multistage bifurcation. The study of the three stages of discharge channel development contributes to exploring the mechanisms of mutual exclusion and fusion between discharge channels. These findings provide a theoretical basis for optimizing the structural design and application of SDBD actuators in related fields.

关键词: oblique dual-tip surface dielectric barrier discharge, multiple discharge channels, discharge pattern, channel interaction

Abstract: The dynamic evolution characteristics of the discharge channel are a key factor influencing the plasma distribution of surface dielectric barrier discharge (SDBD). In this paper, a novel oblique dual-tip SDBD actuator structure is proposed to investigate the multi-stage development mechanism of discharge channels. Experimental results demonstrate that when the oblique angle between the two tips ranges from 30$^\circ$ to 90$^\circ$, strong mutual repulsion occurs between the discharge channels, with the repulsion intensity increasing as the voltage amplitude increases. When the tip angle is 120$^\circ$, the dynamic evolution of the discharge channel exhibits three distinct stages. In the initial stage, localized ionization occurs near the leading edge of each tip, forming two independent discharge channels. Then the channels merge and extend along a specific direction, creating a single dominant filament. The current between the two tip electrodes was measured, demonstrating the existence of connected discharge channels. In the final stage, the front of the channel develops multistage bifurcation. The study of the three stages of discharge channel development contributes to exploring the mechanisms of mutual exclusion and fusion between discharge channels. These findings provide a theoretical basis for optimizing the structural design and application of SDBD actuators in related fields.

Key words: oblique dual-tip surface dielectric barrier discharge, multiple discharge channels, discharge pattern, channel interaction

中图分类号: (Electrical properties)

51.50.+v

52.20.-j (Elementary processes in plasmas) 52.38.Hb (Self-focussing, channeling, and filamentation in plasmas)

Hui Jiang(姜慧), Jinyu Tang(唐金宇), and Yufei Han(韩雨菲). Study on the interaction and evolution of surface dielectric barrier discharge channels[J]. 中国物理B, 2026, 35(3): 35101-035101.

Hui Jiang(姜慧), Jinyu Tang(唐金宇), and Yufei Han(韩雨菲). Study on the interaction and evolution of surface dielectric barrier discharge channels[J]. Chin. Phys. B, 2026, 35(3): 35101-035101.

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Study on the interaction and evolution of surface dielectric barrier discharge channels

Study on the interaction and evolution of surface dielectric barrier discharge channels

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