Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2010-01-14
Physics
Condensed Matter
Soft Condensed Matter
5 pages, 6 figures, original paper
Scientific paper
We investigate experimentally the behavior of the rate of growth of a column of grains, in a partially filled vertically shaken U-tube. For the set of frequencies used we identify three qualitatively different behaviors for the growth rate $\gamma$ as a function of the dimensionless acceleration $\Gamma$: 1) an interval of zero growth for low $\Gamma$ with a smooth change to nonzero growth, analogous to a continuous phase transition; 2) a sigmoidal region for $\gamma$ at intermediate values of the dimensionless acceleration $\Gamma$; and 3) an abrupt change from high values of $\gamma$ to zero growth at high values of $\Gamma$, similar to a first order phase transition. We obtain that our data is well described by a simple differential equation for the change of the growth rate with the dimensionless acceleration of the vertical vibrations.
Darias J. R.
Gutierrez Gonzalo
Sánchez Iván
No associations
LandOfFree
Motion of grains in a vibrated U-tube does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Motion of grains in a vibrated U-tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion of grains in a vibrated U-tube will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-355348