Title :
Origin of the double boundary layer structure of EHD plumes
Author :
Vázquez, P.A. ; Pérez, A.T. ; Castellanos, A. ; Atten, P.
Author_Institution :
Dipt. de Electron. y Electromagnetismo, Fac. de Fisica, Seville, Spain
Abstract :
The flow at the early stages of axisymmetric EHD plumes is analyzed, by means of boundary layer analysis. It is found that very near the surface, the in ward velocity of the liquid, due to the acceleration in the axial direction, overcomes the radial drift velocity of the ions. So the liquid pushes the ions toward the axis, confining the electric charge
Keywords :
boundary layers; dielectric liquids; electrohydrodynamics; EHD plume; charge injection; double boundary layer structure; electric field; flow; insulating liquid; ion drift velocity; Dielectric liquids; Electrodes; Electron mobility; Insulation; Kinematics; Motion analysis; Navier-Stokes equations; Permittivity; Space charge; Viscosity;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1998. Annual Report. Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5035-9
DOI :
10.1109/CEIDP.1998.733925
