Title :
Velocity and power fields electrohydrodynamic flows
Author :
Stishkov, Y.K. ; Ostapenko, A.A. ; Pavleyno, M.A.
Author_Institution :
Sci.-Res. Inst. of Radiophys., St. Petersburg State Univ., Russia
Abstract :
Distribution of electrohydrodynamic flow velocities in a system of electrode edges (wire) over a plate is described. Tiny gas bubbles (10-50 μm), as inclusions for visualizations, are used. Special investigations show that the error caused by bubbles is not more than 5%. The conductivity of liquid is invariant. The high limit of the velocity range reached 2-5 m/s. A special program for processing video records of EHD flows was elaborated. This program allow construction of velocity fields in a two-dimensional plot. Vector fields of velocities in mixture of transformer oil with butanol under different voltage are described
Keywords :
bubbles; electrohydrodynamics; flow visualisation; two-phase flow; 10 to 50 mum; 2 to 5 m/s; EHD flows; conductivity; electrodes; electrohydrodynamic flow velocity distribution; error; gas bubbles; inclusions; processing video records; transformer oil-butanol mixture; two-dimensional plot; velocity range; velocity vector fields; visualizations; voltage; Acceleration; Conductivity; Current measurement; Dielectric liquids; Electrodes; Electrohydrodynamics; Oil insulation; Velocity measurement; Visualization; Wire;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1999 Annual Report Conference on
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-5414-1
DOI :
10.1109/CEIDP.1999.807931
