pedroa@uma.pt
(+351) 291 70 52 51

The High-Pressure Plasmas Group is strongly focused on the low-temperature plasma science and engineering research and fluid dynamics. The work of the group relies on theoretical methods, numerical simulation, and experiment performed both in partner laboratories abroad and in the Plasma Laboratory operated by the group. The Plasma Laboratory is a part of facilities allocated to the group on the Penteada Campus of Universidade da Madeira in Funchal and was established with support from FCT, COST programme of the EU, and industry (Philips).

pedroa@uma.pt
(+351) 291 70 52 51
Bifurcations in the theory of current transfer to cathodes of dc discharges..

Bifurcations in the theory of current transfer to cathodes of dc discharges and transitions between different modes

Concentration of electrical current onto the surface of electrodes of gas discharges in well-defined regions, or current spots, is often the rule rather than the exception. These spots occur on otherwise uniform electrode surfaces, a regime where one might expect a un(...)

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Modelling anode spots in a DC glow discharge

Beautiful patterns on anodes of DC glow discharges have been observed for over a century. In addition to being of significant theoretical interest by themselves, self-organized patterns on liquid anodes of atmospheric pressure glow microdischarges reveal a non-trivial cancer-inhibiting capability.

Our goal was to compute self-organized patterns of spots on a flat metallic anode of a glow(...)

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Modelling of plasma-electrode interaction in high-pressure arc discharge

Efficient methods of modelling of electric arcs in high-pressure environment are of high importance for many technical devices, and the interaction of arc plasmas with electrodes, in the first place, the cathode, is currently a bottleneck. This explains a surge of interest in plasma-electrode interaction inhigh-pressure arc discharges in the scientific community that has occurred over the past couple o(...)

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Physics of cathode spots in vacuum arcs

Understanding of mechanisms of operation of cathodic spots of vacuum arc discharges, including the role of explosive electron emission, is a challenging topic of high scientific interest and importance for applications. We conducted this research on the suggestion of, and in collaboration with, colleagues from Siemens Corporate Technology (Erlangen, Germany), one of the aims being application of result(...)

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