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Dynamical density functional theory analysis of the laning instability in sheared soft matter




TekijätScacchi, A.; Archer, A. J.; Brader, J. M.

KustantajaAMER PHYSICAL SOC

KustannuspaikkaCOLLEGE PK

Julkaisuvuosi2017

JournalPhysical review E

Tietokannassa oleva lehden nimiPHYSICAL REVIEW E

Lehden akronyymiPHYS REV E

Artikkelin numero 062616

Vuosikerta96

Numero6

Sivujen määrä8

ISSN2470-0045

eISSN2470-0053

DOIhttps://doi.org/10.1103/PhysRevE.96.062616


Tiivistelmä
Using dynamical density functional theory (DDFT) methods we investigate the laning instability of a sheared colloidal suspension. The nonequilibrium ordering at the laning transition is driven by nonaffine particle motion arising from interparticle interactions. Starting from a DDFT which incorporates the nonaffine motion, we perform a linear stability analysis that enables identification of the regions of parameter space where lanes form. We illustrate our general approach by applying it to a simple one-component fluid of soft penetrable particles.



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