On the stability of a rotating electrified liquid jet. Effect of an axial electric field

摘要: Abstract The electrohydrodynamic stability of a liquid cylinder subject to surface tension and subjected periodic rotation has been elaborated for all axisymmetric perturbations. dielectric fluids are assumed be stressed by uniform axial electric field. analysis is based on the method multiple time scales. zeroth-order perturbation yields transcendental dispersion relation. field plays stabilizing role can used suppress instability constant rotation. It observed in case that if outer surrounding medium rotating faster than inner jet it makes system more stable. problem first order solved analytically. solvability condition obtained. transition curves examined. frequency control position resonance regions. analytical results show increase amplitude angular velocity destabilizing effect. dual criterion, influence nonresonance at case.