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91 papers · 1 filter
The inconvenient truth about flocks
Leiming Chen, Patrick Jentsch, Chiu Fan Lee +3
We reanalyze the hydrodynamic theory of "flocks" that is, polar ordered "dry" active fluids in two dimensions. For "Malthusian" flocks, in which birth and death cause the density t…
Cooperative polymer dynamics at the crossover between the unentangled and the entangled regimes: theoretical predictions of scattering and linear shear relaxation for polyethylene melts
M. G. Guenza
The dynamics of polymer melts at the crossover between unentagled and entangled regimes is formalized here through an extension of the Cooperative Dynamics Generalized Langevin Equ…
Two-molecule theory of polyethylene liquids
Huimin Li, James P. Donley, David T. Wu +2
Two-molecule theory refers to a class of microscopic, self-consistent field theories for the radial distribution function in classical molecular liquids. The version examined here…
Closure to the PRISM equation derived from nonlinear response theory
James P. Donley
Nonlinear response theory is employed to derive a closure to the polymer reference interaction site model (PRISM) equation. The closure applies to a liquid of neutral polymers at m…
Phase behaviour and self-assembly of semiflexible polymers in poor-solvent solutions
Tobia Arcangeli, Tatjana Škrbić, Somiealo Azote +6
Using Langevin dynamics complemented by Wang-Landau Monte Carlo simulations, we study the phase behavior of single and multiple semiflexible polymer chains in solution under poor-s…
Basal force fluctuations and granular rheology: Linking macroscopic descriptions of granular flows to bed forces with implications for monitoring signals
P. J. Zrelak, Eric C. P. Breard, Josef Dufek
Granular flows are ubiquitous in nature with single flows traversing a wide range of dynamic conditions from initiation to deposition. Many of these flows are responsible for signi…