Title :
On the instability of the interface between two layers of conducting and insulating liquids subjected to a DC field
Author :
Atten, P. ; Koulova-Nenova, D.
Author_Institution :
LEMD, CNRS, Grenoble, France
Abstract :
Injecting ions into a layer of insulating nonpolar liquid lying above a conducting liquid generally lowers the applied voltage at which the interface destabilises. The system of equations and boundary conditions obtained by the linear analysis of hydrodynamic instability is first recalled. Then a simple model illustrates the destabilising effect of the space charge and some analytical results are given along with the numerically determined values of the criterion for interfacial instability. Finally the influence of the injection induced convection in the insulating layer on the interface instability is discussed
Keywords :
charge injection; dielectric liquids; electrohydrodynamics; space charge; applied DC field; boundary conditions; conducting liquid; hydrodynamic instability; injection induced convection; insulating nonpolar liquid; interface instability; space charge; Bonding; Boundary conditions; Dielectric liquids; Dielectrics and electrical insulation; Electric potential; Electrodes; Equations; Linear approximation; Space charge; Voltage;
Conference_Titel :
Dielectric Liquids, 1999. (ICDL '99) Proceedings of the 1999 IEEE 13th International Conference on
Conference_Location :
Nara
Print_ISBN :
0-7803-4759-5
DOI :
10.1109/ICDL.1999.798925
