Abstract
This paper describes the effects of the arrangement of electrodes, the temperature of the working fluid, and the polarity of the electrode on the Electro-hydro-dynamical (EHD) generated pressure to clarify the stable operating conditions of EHD pump for realizing the vertical transportation of the dielectric liquid. The vertical type EHD pump is composed of the ring electrode and the cylindrical electrode arranged in an U type pipe filled with the dielectric liquid. The dielectric liquid such as the silicone oil is transported vertically against the gravity by applying the direct high electric field between the cylindrical electrode and the ring electrode.
The following results have been obtained experimentally. The EHD pump can transport the silicone oil steadily to the upward direction by using the ring electrode vertically placed against the cylindrical electrode. When the direct high voltage is applied at the cylindrical electrode and the ring electrode is electrically earthed, the silicone oil moves steadily toward the direction of the cylindrical electrode.
