Flow surface unit e.g. spoiler, operating method for e.g. aircraft, involves generating electrical power pulses, supplying electrodes with power pulses, and producing plasma in gaseous medium that surrounds electrodes in electrodes

摘要

The method involves generating electrical power pulses, and supplying electrodes (5a-5c, 6) of plasma producing devices (2) with the power pulses. A plasma in a gaseous medium that surrounds the electrodes is produced in an area of the electrodes of the plasma producing devices, which are supplied with the power pulses. Periodic signals are generated, where the periodic signals has a phase shift. A conveying movement of the plasma is produced along a flow surface unit (1) such as spoiler, by supplying the electrodes with the periodic signals.