Abstract

When applying a high potential to a blade or a pin immerged in an insulating liquid, ions are injected from the electrodes into the liquid. Several researches have been made on blade-plane geometry and important results have been already issued. In this paper, we test a blade-plane geometry with a two-plate system creating a slit in front of the blade and for which the fluid flow produced by the injected ions is modified by the slit. The electric current is also different from the one obtained with a simple blade-plane geometry. We first present the evolution of the injected current as a function of the applied voltage. Then we study the characteristics of the injection of charges and particularly the threshold of both voltage and electric field. We finally present a Laser Doppler Velocimetry (LDV) study of the flow.

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