Title :
Image analysis of internal liquid flow in an AW type EHD pump
Author :
Ueda, A. ; Ohyama, R. ; Watson, A. ; Chang, J.S.
Author_Institution :
Dept. of Electr. Eng., Tokai Univ., Kanagawa, Japan
Abstract :
In this work, an experimental investigation of internal liquid flow in a non-intrusive gas-liquid two-phase electrohydrodynamical pump was conducted. The electrode system consists of a corona wire electrode in gas-phase and an inclined plate electrode in a gas-liquid interface. An operation of the DC corona discharge electrohydrodynamically induces gas-liquid two-phase stratified flow, and pumps the liquid out of its tank along the plate electrode surface against the gravitational force. An analysis of the internal liquid flow in the tank is carried out by an image processing technique from the visualized liquid flow patterns. The velocity distribution of the liquid flow inside the tank and along the gas-liquid interface is quantitatively shown
Keywords :
corona; electrohydrodynamics; flow visualisation; pumps; two-phase flow; AW type EHD pump; DC corona discharge; corona wire electrode; electrode system; gas-liquid interface; gas-liquid two-phase stratified flow; gas-phase; gravitational force; image analysis; image processing; inclined plate electrode; internal liquid flow; nonintrusive gas-liquid two-phase electrohydrodynamical pump; plate electrode surface; velocity distribution; visualized liquid flow patterns; Corona; Electrodes; Fluid flow; Gravity; Image analysis; Image processing; Pattern analysis; Surface discharges; Visualization; Wire;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2001 Annual Report. Conference on
Conference_Location :
Kitchener, Ont.
Print_ISBN :
0-7803-7053-8
DOI :
10.1109/CEIDP.2001.963593
