Ionizing Waves in Surface Dielectric Barrier Discharges Plasma Actuators

IF 4.7 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-02-22 DOI:10.3390/act13030086

R. Barni, H. E. Roman, Claudia Riccardi

引用次数: 0

Abstract

Plasma actuators have been proposed as a tool to produce hydrodynamical effects in the boundary layer of aerodynamical flows. We have analyzed some properties of these systems using suitable plasma diagnostics based on the emissivity characteristics of such plasmas. The direction and the velocity of propagation of the ionizing wave spreading on the dielectric surface were measured (in the 100–200 km/s range), and it was demonstrated that it behaves like a cathode-directed streamer. The averaged electron temperature (4–5 eV) and the reduced field strength (E/N ≈ 6 × 1019 V·m2) of the ionizing wave switching the discharges on were measured, too.

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表面介质屏障放电中的电离波等离子体执行器

等离子体致动器被认为是在空气动力流边界层产生流体力学效应的一种工具。我们根据等离子体的发射率特性，利用合适的等离子体诊断技术分析了这些系统的一些特性。我们测量了电离波在介质表面传播的方向和速度（100-200 千米/秒），并证明它的行为类似于阴极定向流。此外，还测量了平均电子温度（4-5 eV）和电离波切换放电时的还原场强（E/N ≈ 6 × 1019 V-m2）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.