Non-equilibrium phase transitions in suspensions of oppositely driven inertial particles

Liu, Xiaoxing, Ge, Wei and Li, Jinghai (2008) Non-equilibrium phase transitions in suspensions of oppositely driven inertial particles. Powder Technology, 184 2: 224-231. doi:10.1016/j.powtec.2007.11.045


Author Liu, Xiaoxing
Ge, Wei
Li, Jinghai
Title Non-equilibrium phase transitions in suspensions of oppositely driven inertial particles
Journal name Powder Technology   Check publisher's open access policy
ISSN 0032-5910
1873-328X
Publication date 2008-05-16
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.powtec.2007.11.045
Volume 184
Issue 2
Start page 224
End page 231
Total pages 8
Editor Colin Thornton
Place of publication Lausanne, Switzerland
Publisher Elsevier S.A.
Language eng
Formatted abstract
The structural evolution of a two-specie suspension of inertial particles under opposite driving forces is investigated by molecular dynamics simulations. The effects of the driving force (F) and the total number density of the particles (ρ) on the final structure are explored. When F is increased under a high ρ, the system starts with a frozen phase, passes through an ordered phase characterized by two demixed lanes moving in opposite directions, and finally returns to a disorder phase. When ρ is increased under a low F, a novel re-entrant phase transition is found: more than two lanes parallel to the driving forces are observed first, followed by a disordered phase with different kinds of particles blocking each other, and then an ordered state with all particles separating into two demixed lanes. We comment on the possible mechanisms underlying these phase transitions in terms of the compromise between the directional driven motion and random thermal fluctuation.
Keyword Phase transition
Lane
Inertial particle
Color field
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes DISCRETE ELEMENT MODELLING OF FLUIDISED BEDS (Special Issue: Dedicated to Professor Yutaka Tsuji). Available online 3 December 2007.

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
Earth Systems Science Computational Centre Publications
 
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Created: Fri, 14 Oct 2011, 08:41:44 EST by Xiaoxing Liu on behalf of Earth Systems Science Computational Centre