Dissipative Solitons in Dielectric Barrier Discharges - Moving Filaments due to Surface Preparation

Lars Stollenwerk

Universität Münster, Institut für Angewandte Physik, Münster, Germany

Experimental results on the movement of filaments in a dielectric barrier discharge become presented. This discharge system is characterised by a very small discharge gap and a wide lateral expansion. The dielectric surfaces are prepared with some humidity. Depending on the amount of humidity standing or moving filaments can be observed during the discharge. As the discharge influences the dielectric surfaces and their coating, the movement vanishes during the experiment. The phenomenon is a new drift mechanism for solitary objects. We propose a qualitative explanation of the observed phenomenons.

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