Experimental study on the influence of bed height on convection cell formation

Experimental study on the influence of bed height on convection cell formation In this study, we have investigated experimentally the convection phenomenon of granular matter in a vertical shaker device. The motions of the granular materials were recorded by a high-speed camera. Image processing technology and a particle tracking method were employed to measure the convection strength, convection size, and granular temperature. The results show that the initial bed height, dimensionless vibrating acceleration, and vibrating frequency have significant influence on the convection mechanism. An interesting finding that occurs with increasing the bed height is the existence of two peaks and one low convection strength value which occurs due to the growth of the solid-like region. We also find that the two peak and one low values become greater when higher dimensionless vibrating acceleration is applied to the granular bed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Experimental study on the influence of bed height on convection cell formation

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Publisher
Springer-Verlag
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Engineering; Engineering Thermodynamics, Heat and Mass Transfer; Engineering Fluid Dynamics; Fluid- and Aerodynamics
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-011-1099-x
Publisher site
See Article on Publisher Site

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