Translation-deformation coupling effects on the Rayleigh instability of an electrodynamically levitated charged droplet.

  title={Translation-deformation coupling effects on the Rayleigh instability of an electrodynamically levitated charged droplet.},
  author={Neha Gawande and Y S Mayya and Rochish M. Thaokar},
  journal={The European physical journal. E, Soft matter},
  volume={45 5},
The breakup pathway of the Rayleigh fission process observed in the past experiments carried out using high-speed imaging of a charged drop levitated in an AC quadrupole trap has shown to exhibit several cycles of shape and center-of-mass oscillations followed by asymmetric breakup by ejecting a jet in the upward direction (i.e., opposite to the direction of gravity). We recently attempted to explain this using boundary integral simulations in the Stokes flow limit, wherein the position of the… 

Figures from this paper


The effect of quadrupolar trap potential on the Rayleigh instability and breakup of a levitated charged droplet.
Asymmetric breakup of a charged drop, levitated in a loose trap, wherein, the droplet is stabilized at an off-center location in the trap, is reported, whereas the breakup in this study is mostly field influenced, and not field induced.
Jet and progeny formation in the Rayleigh breakup of a charged viscous drop
Past experimental studies have indicated that the Rayleigh fission of a charged drop occurs via the formation of a jet followed by emission of progeny droplets. In order to understand this process,
Influence of the trap potential waveform on surface oscillation and breakup of a levitated charged drop
A charged droplet can be electrodynamically levitated in air using a quadrupole trap by typically applying a sinusoidal electric field. When a charged drop is levitated, it exhibits surface
Surface oscillations of a sub-Rayleigh charged drop levitated in a quadrupole trap
A conducting charged drop, when subjected to a small amplitude perturbation, becomes unstable when the surface charge exceeds its Rayleigh limit. On the other hand, a drop with a charge in the
Dynamics of a charged drop in a quadrupole electric field
Quadrupole electric fields are commonly employed for confining charged conducting drops in Paul traps for studying Rayleigh instability characteristics. We investigate the effect of these fields on
Axisymmetric shapes and stability of charged drops in an external electric field
A highly conducting charged drop that is surrounded by a fluid insulator of another density can be levitated by suitably applying a uniform electric field. Axisymmetric equilibrium shapes and
Singularities on charged viscous droplets
We study the evolution of charged droplets of a conducting viscous liquid. The flow is driven by electrostatic repulsion and capillarity. These droplets are known to be linearly unstable when the
Exploring Chemistry in Microcompartments Using Guided Droplet Collisions in a Branched Quadrupole Trap Coupled to a Single Droplet, Paper Spray Mass Spectrometer.
A new type of electrodynamic balance-the branched quadrupole trap (BQT) is presented-which can be used to study reactions in microdroplets in a controlled environment and it is demonstrated that single droplets with <100 pg of analyte can easily be studied using single droplet mass spectrometry.
Equilibrium shapes and stability of charged and conducting drops
It was shown by Rayleigh [Philos. Mag. 14, 184 (1882)] that a conducting spherical drop becomes unstable when the net dimensionless charge on its surface, Qc, exceeds the value of 4(π)1/2 . More
Coulomb fission: Rayleigh jets from levitated microdroplets
The dynamics of the disintegration process is recorded by examining levitated droplets under high-speed microscopy to help explain one of the oldest unsolved problems in experimental and theoretical physics.