Spatial Temporal Stability of an Electrified Viscoelastic Liquid Jet

Abstract

This paper presents theoretically the spatialtemporal instability behavior of an electrified viscoelastic liquid jet. Dimensionless parameters have been tested for their influence on the transition of absolute and convective instability for the electrified viscoelastic liquid jet. The results show that larger electrical Euler and Weber numbers can change the flow to convectively unstable. The increase of Reynolds number can decrease the absolute growth rate. Variations of time constant and density ratio rarely change the spatialtemporal instability behavior of the jet. The disturbance wavelength changes very little with these parameters when the flow is absolutely unstable.