Scaling behavior in the convection-driven Brazil nut effect.

@article{Hejmady2012ScalingBI,
  title={Scaling behavior in the convection-driven Brazil nut effect.},
  author={Prakhyat Hejmady and Ranjini Bandyopadhyay and Sanjib Sabhapandit and Abhishek Dhar},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2012},
  volume={86 5 Pt 1},
  pages={
          050301
        }
}
The Brazil nut effect is the phenomenon in which a large intruder particle immersed in a vertically shaken bed of smaller particles rises to the top, even when it is much denser. The usual practice while describing these experiments has been to use the dimensionless acceleration Γ = aω(2)/g, where a and ω are, respectively, the amplitude and the angular frequency of vibration and g is the acceleration due to gravity. Considering a vibrated quasi-two-dimensional bed of mustard seeds, we show… 

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