Nonlinear behavior of electrohydrodynamic flow in viscoelastic fluids
Zheng-Gang Su, Tian-Fu Li, Kang Luo, Hong-Liang Yi
Abstract
The nonlinear evolution of electrohydrodynamic flow subjected to unipolar injection in the dielectric liquid is extended from Newtonian fluids to viscoelastic fluids. The effect of viscoelasticity not only precipitates the onset of chaos but also leads to new transition sequences to chaos. Moreover, an asymmetric steady flow pattern is observed in a perfectly symmetric geometry. In viscoelastic fluids, the electric current transfer is reduced in most cases, but for weakly elastic fluid, it may be enhanced.
Topics & Concepts
ElectrohydrodynamicsViscoelasticityNewtonian fluidNonlinear systemMechanicsFlow (mathematics)Materials scienceDielectricNon-Newtonian fluidPhysicsElectric fieldComposite materialQuantum mechanicsOptoelectronicsRheology and Fluid Dynamics StudiesPower Transformer Diagnostics and InsulationNonlinear Dynamics and Pattern Formation