Document Detail


Spiral trajectory in the horizontal Brazil nut effect.
MedLine Citation:
PMID:  18643254     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
An intruder to a group of identical beads contained in a circular plate which is subjected to a circular vibration will trace approximately a cyclic spiral. The trajectory is a result of both migration and rotation. The intruder migrates in the radial direction while rotating with a constant speed with respect to the center of mass of the whole group of beads. The rotation velocity is due to friction between the beads and the container wall and determined by the vibration amplitude and the number of beads. The migration direction is dependent on the size ratio and mass ratio of the intruder to the background beads. The migration speed is constant for the outward migration, but decreases gradually when the intruder migrates toward the center of mass of the whole cluster for the inward case.
Authors:
Fei Fang Chung; Chia-Yi Ju; Sy-Sang Liaw
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Publication Detail:
Type:  Journal Article     Date:  2008-06-13
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  77     ISSN:  1539-3755     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-07-22     Completed Date:  2008-09-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  061304     Citation Subset:  -    
Affiliation:
Department of Physics, National Chung-Hsing University, Taichung, Taiwan.
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