Electroconvective cavity flows produced by a cylinder/plane electrode geometry

S. MODH; C. GOURIOU; R. SOSA; M.DAABOUL; P TRAORÉ; C LOUSTE

Conferencia; 2016 Electrostatics Joint Conference; 2016

The Electrostatics Society of America (ESA)

The presented work is an experimental study on electroconvective cavity flowsproduced by a cylinder- plane electrode geometry. Flows are recorded by the used of the well-known particle image velocimetry technique. The main objective of this work is to developflow control methods in order to enhance the heat transfer and the mixing efficiency in fluidicand microfluidic systems. In this study, the electrohydrodynamic flow is obtained by applyinga dc voltage to a set of electrodes immersed in a working liquid. It is shown that the producedvelocity fields strongly depend on apply voltage. An analysis of the velocity field is then real-ized to display electric forces. The current is also measured with an oscilloscope using a shuntresistor connected to the ground electrode. Introduction