空气介质阻挡放电系统中微放电的白眼斑图形成
Formation of white-eye pattern with microdischarge in an air dielectric barrier discharge system
摘要:
我们报告的第一次观察到的空气介质阻挡放电中的白眼图案。随着电压的增加,图案化放电经历了随机斑点-准六边形图案-六边形图案(I型)-六边形图案(II型)-白眼图案-混沌的发展过程。利用光学方法研究了斑图放电的时空特性。结果表明,均匀放电模式和非均匀放电模式实际上是同一起源的微放电在空间上的两种不同表现形式。从图案动力学的观点来看,白眼图案是由3波共振相互作用引起的。
英文摘要:
We report on the first observation of white-eye pattern in an air dielectric barrier discharge. The patterned discharges undergo a development as following: random spots - quasihexagonal pattern - hexagonal pattern (type I) - hexagonal pattern (type II) - white-eye pattern - chaos as the voltage is increased. The spatiotemporal characteristics of patterned discharges are investigated by using an optical method. Results show that the two discharge modes, uniform mode and filamentary mode, are actually two different spatial presentations of the same origin: the microdischarge. From the viewpoint of pattern dynamics, the white-eye pattern results from a 3-wave resonance interaction.
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