Electrohydrodynamic plasma actuator induces the atmosphere plasma to directly convert electric energy into kinetic energy of air without involving moving mechanical parts.Thus it holds a promising future in air flow control.However

until now the converting efficiency of EHD plasma actuator is quite low.This paper focuses on the impact of sealing the lower electrodes with Kapton on the performance of EHD plasma actuator.Experimental results show that the plasma induced near the lower electrodes and in the negative half cycle of voltage is completely quenched

the air flow induced by the plasma actuator is accelerated

and the energy converting efficiency of EHD plasma actuator increases significantly.