Open AccessCycle of segregation patterns in vertically vibrated binary granular mixtures
Author(s) -
Xiao Liang,
Liangsheng Li,
Zhaoguo Hou,
Lue Zhen,
Lei Yang,
Gang Sun,
Quan Shi
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.2300
Subject(s) - dissipation , granular material , materials science , binary number , vibration , nut , phase diagram , mechanics , phase (matter) , thermodynamics , physics , composite material , arithmetic , mathematics , quantum mechanics , acoustics
A new phenomenon of granular segregation is observed, in which the binary granular mixture submitted to the vertically vibration behaves in cyclic segregation patterns which switches between the Brazil nut, reverse Brazil nut and sandwich patterns with a frequency that accelerates with time. The rule of cycing is investigated, and the phase diagram is depicted. The new phenomenon is qualitatively explained in terms of the collision, friction and air dissipation, and it was experimentally verified that the cycling of segregation patterns has close relation with the presence of air.