Levitation of non-magnetizable droplet inside ferrofluid

@article{Singh2018LevitationON,
  title={Levitation of non-magnetizable droplet inside ferrofluid},
  author={Chamkor Singh and Arup Kumar Das and Prasanta Kumar Das},
  journal={Journal of Fluid Mechanics},
  year={2018},
  volume={857},
  pages={398 - 448}
}
The central theme of this work is that a stable levitation of a denser non-magnetizable liquid droplet, against gravity, inside a relatively lighter ferrofluid – a system barely considered in ferrohydrodynamics – is possible, and exhibits unique interfacial features; the stability of the levitation trajectory, however, is subject to an appropriate magnetic field modulation. We explore the shapes and the temporal dynamics of a plane non-magnetizable droplet levitating inside a ferrofluid against… 
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