INTERFACIAL STABILITY AND NONLINEAR PROPERTIES OF ELECTROHYDRODYNAMICS

摘要

A weakly nonlinear evolution of two-dimensional wave packets on the surface of a fluid layer in the presence of an applied electric field is investigated. The method used is that of multiple scales. Two nonlinear Schroedinger equations describing the perturbed system are obtained, one of which leads to the determination of the cutoff electric field. The other Schroedinger equation is used to analyze the stability of the system.